diff --git a/document-ai/.eslintrc.yml b/document-ai/.eslintrc.yml
new file mode 100644
index 0000000000..98634adbef
--- /dev/null
+++ b/document-ai/.eslintrc.yml
@@ -0,0 +1,4 @@
+---
+rules:
+  no-console: off
+  node/no-unsupported-features/node-builtins: off
diff --git a/document-ai/batch-process-document.js b/document-ai/batch-process-document.js
new file mode 100644
index 0000000000..bb9d5ad3ed
--- /dev/null
+++ b/document-ai/batch-process-document.js
@@ -0,0 +1,149 @@
+/**
+ * Copyright 2020 Google LLC
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+const uuid = require('uuid');
+
+async function main(
+  projectId = 'YOUR_PROJECT_ID',
+  location = 'YOUR_PROJECT_LOCATION',
+  processorId = 'YOUR_PROCESSOR_ID', // Create this in the Cloud Console
+  gcsInputUri = 'gs://cloud-samples-data/documentai/invoice.pdf',
+  gcsOutputUri = 'output-bucket',
+  gcsOutputUriPrefix = uuid.v4()
+) {
+  // [START documentai_batch_process_document]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_PROJECT_LOCATION'; // Format is 'us' or 'eu'
+  // const processorId = 'YOUR_PROCESSOR_ID';
+  // const gcsInputUri = 'YOUR_SOURCE_PDF';
+  // const gcsOutputUri = 'YOUR_STORAGE_BUCKET';
+  // const gcsOutputUriPrefix = 'YOUR_STORAGE_PREFIX';
+
+  // Imports the Google Cloud client library
+  const {DocumentProcessorServiceClient} =
+    require('@google-cloud/documentai').v1;
+  const {Storage} = require('@google-cloud/storage');
+
+  // Instantiates Document AI, Storage clients
+  const client = new DocumentProcessorServiceClient();
+  const storage = new Storage();
+
+  const {default: PQueue} = require('p-queue');
+
+  async function batchProcessDocument() {
+    const name = `projects/${projectId}/locations/${location}/processors/${processorId}`;
+
+    // Configure the batch process request.
+    const request = {
+      name,
+      inputDocuments: {
+        gcsDocuments: {
+          documents: [
+            {
+              gcsUri: gcsInputUri,
+              mimeType: 'application/pdf',
+            },
+          ],
+        },
+      },
+      documentOutputConfig: {
+        gcsOutputConfig: {
+          gcsUri: `${gcsOutputUri}/${gcsOutputUriPrefix}/`,
+        },
+      },
+    };
+
+    // Batch process document using a long-running operation.
+    // You can wait for now, or get results later.
+    // Note: first request to the service takes longer than subsequent
+    // requests.
+    const [operation] = await client.batchProcessDocuments(request);
+
+    // Wait for operation to complete.
+    await operation.promise();
+    console.log('Document processing complete.');
+
+    // Query Storage bucket for the results file(s).
+    const query = {
+      prefix: gcsOutputUriPrefix,
+    };
+
+    console.log('Fetching results ...');
+
+    // List all of the files in the Storage bucket
+    const [files] = await storage.bucket(gcsOutputUri).getFiles(query);
+
+    // Add all asynchronous downloads to queue for execution.
+    const queue = new PQueue({concurrency: 15});
+    const tasks = files.map((fileInfo, index) => async () => {
+      // Get the file as a buffer
+      const [file] = await fileInfo.download();
+
+      console.log(`Fetched file #${index + 1}:`);
+
+      // The results stored in the output Storage location
+      // are formatted as a document object.
+      const document = JSON.parse(file.toString());
+      const {text} = document;
+
+      // Extract shards from the text field
+      const getText = textAnchor => {
+        if (!textAnchor.textSegments || textAnchor.textSegments.length === 0) {
+          return '';
+        }
+
+        // First shard in document doesn't have startIndex property
+        const startIndex = textAnchor.textSegments[0].startIndex || 0;
+        const endIndex = textAnchor.textSegments[0].endIndex;
+
+        return text.substring(startIndex, endIndex);
+      };
+
+      // Read the text recognition output from the processor
+      console.log('The document contains the following paragraphs:');
+
+      const [page1] = document.pages;
+      const {paragraphs} = page1;
+      for (const paragraph of paragraphs) {
+        const paragraphText = getText(paragraph.layout.textAnchor);
+        console.log(`Paragraph text:\n${paragraphText}`);
+      }
+
+      // Form parsing provides additional output about
+      // form-formatted PDFs. You  must create a form
+      // processor in the Cloud Console to see full field details.
+      console.log('\nThe following form key/value pairs were detected:');
+
+      const {formFields} = page1;
+      for (const field of formFields) {
+        const fieldName = getText(field.fieldName.textAnchor);
+        const fieldValue = getText(field.fieldValue.textAnchor);
+
+        console.log('Extracted key value pair:');
+        console.log(`\t(${fieldName}, ${fieldValue})`);
+      }
+    });
+    await queue.addAll(tasks);
+  }
+  // [END documentai_batch_process_document]
+
+  batchProcessDocument();
+}
+main(...process.argv.slice(2));
diff --git a/document-ai/package.json b/document-ai/package.json
new file mode 100644
index 0000000000..5f5b7a6ae3
--- /dev/null
+++ b/document-ai/package.json
@@ -0,0 +1,25 @@
+{
+  "name": "nodejs-document-ai-samples",
+  "private": true,
+  "license": "Apache-2.0",
+  "author": "Google LLC",
+  "engines": {
+    "node": ">=12.0.0"
+  },
+  "files": [
+    "*.js"
+  ],
+  "scripts": {
+    "test": "mocha test/*.js --timeout 600000"
+  },
+  "dependencies": {
+    "@google-cloud/documentai": "^6.1.0",
+    "@google-cloud/storage": "^6.0.0",
+    "p-queue": "^6.6.2",
+    "uuid": "^9.0.0"
+  },
+  "devDependencies": {
+    "chai": "^4.2.0",
+    "mocha": "^8.0.0"
+  }
+}
diff --git a/document-ai/process-document-form.js b/document-ai/process-document-form.js
new file mode 100644
index 0000000000..bf0459d93e
--- /dev/null
+++ b/document-ai/process-document-form.js
@@ -0,0 +1,132 @@
+/**
+ * Copyright 2021, Google, Inc.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+async function main(projectId, location, processorId, filePath) {
+  // [START documentai_process_form_document]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_PROJECT_LOCATION'; // Format is 'us' or 'eu'
+  // const processorId = 'YOUR_PROCESSOR_ID'; // Create processor in Cloud Console
+  // const filePath = '/path/to/local/pdf';
+
+  const {DocumentProcessorServiceClient} =
+    require('@google-cloud/documentai').v1beta3;
+
+  // Instantiates a client
+  const client = new DocumentProcessorServiceClient();
+
+  async function processDocument() {
+    // The full resource name of the processor, e.g.:
+    // projects/project-id/locations/location/processor/processor-id
+    // You must create new processors in the Cloud Console first
+    const name = `projects/${projectId}/locations/${location}/processors/${processorId}`;
+
+    // Read the file into memory.
+    const fs = require('fs').promises;
+    const imageFile = await fs.readFile(filePath);
+
+    // Convert the image data to a Buffer and base64 encode it.
+    const encodedImage = Buffer.from(imageFile).toString('base64');
+
+    const request = {
+      name,
+      rawDocument: {
+        content: encodedImage,
+        mimeType: 'application/pdf',
+      },
+    };
+
+    // Recognizes text entities in the PDF document
+    const [result] = await client.processDocument(request);
+
+    console.log('Document processing complete.');
+
+    // Read the table and form fields output from the processor
+    // The form processor also contains OCR data. For more information
+    // on how to parse OCR data please see the OCR sample.
+    // For a full list of Document object attributes,
+    // please reference this page: https://googleapis.dev/nodejs/documentai/latest/index.html
+    const {document} = result;
+    const {text} = document;
+    console.log(`Full document text: ${JSON.stringify(text)}`);
+    console.log(`There are ${document.pages.length} page(s) in this document.`);
+
+    for (const page of document.pages) {
+      console.log(`\n\n**** Page ${page.pageNumber} ****`);
+
+      console.log(`Found ${page.tables.length} table(s):`);
+      for (const table of page.tables) {
+        const numCollumns = table.headerRows[0].cells.length;
+        const numRows = table.bodyRows.length;
+        console.log(`Table with ${numCollumns} columns and ${numRows} rows:`);
+        printTableInfo(table, text);
+      }
+      console.log(`Found ${page.formFields.length} form field(s):`);
+      for (const field of page.formFields) {
+        const fieldName = getText(field.fieldName.textAnchor, text);
+        const fieldValue = getText(field.fieldValue.textAnchor, text);
+        console.log(
+          `\t* ${JSON.stringify(fieldName)}: ${JSON.stringify(fieldValue)}`
+        );
+      }
+    }
+  }
+
+  const printTableInfo = (table, text) => {
+    // Print header row
+    let headerRowText = '';
+    for (const headerCell of table.headerRows[0].cells) {
+      const headerCellText = getText(headerCell.layout.textAnchor, text);
+      headerRowText += `${JSON.stringify(headerCellText.trim())} | `;
+    }
+    console.log(
+      `Collumns: ${headerRowText.substring(0, headerRowText.length - 3)}`
+    );
+    // Print first body row
+    let bodyRowText = '';
+    for (const bodyCell of table.bodyRows[0].cells) {
+      const bodyCellText = getText(bodyCell.layout.textAnchor, text);
+      bodyRowText += `${JSON.stringify(bodyCellText.trim())} | `;
+    }
+    console.log(
+      `First row data: ${bodyRowText.substring(0, bodyRowText.length - 3)}`
+    );
+  };
+
+  // Extract shards from the text field
+  const getText = (textAnchor, text) => {
+    if (!textAnchor.textSegments || textAnchor.textSegments.length === 0) {
+      return '';
+    }
+
+    // First shard in document doesn't have startIndex property
+    const startIndex = textAnchor.textSegments[0].startIndex || 0;
+    const endIndex = textAnchor.textSegments[0].endIndex;
+
+    return text.substring(startIndex, endIndex);
+  };
+
+  // [END documentai_process_form_document]
+  await processDocument();
+}
+
+main(...process.argv.slice(2)).catch(err => {
+  console.error(err);
+  process.exitCode = 1;
+});
diff --git a/document-ai/process-document-ocr.js b/document-ai/process-document-ocr.js
new file mode 100644
index 0000000000..5aadeeab92
--- /dev/null
+++ b/document-ai/process-document-ocr.js
@@ -0,0 +1,166 @@
+/**
+ * Copyright 2021, Google, Inc.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+async function main(projectId, location, processorId, filePath) {
+  // [START documentai_process_ocr_document]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_PROJECT_LOCATION'; // Format is 'us' or 'eu'
+  // const processorId = 'YOUR_PROCESSOR_ID'; // Create processor in Cloud Console
+  // const filePath = '/path/to/local/pdf';
+
+  const {DocumentProcessorServiceClient} =
+    require('@google-cloud/documentai').v1beta3;
+
+  // Instantiates a client
+  const client = new DocumentProcessorServiceClient();
+
+  async function processDocument() {
+    // The full resource name of the processor, e.g.:
+    // projects/project-id/locations/location/processor/processor-id
+    // You must create new processors in the Cloud Console first
+    const name = `projects/${projectId}/locations/${location}/processors/${processorId}`;
+
+    // Read the file into memory.
+    const fs = require('fs').promises;
+    const imageFile = await fs.readFile(filePath);
+
+    // Convert the image data to a Buffer and base64 encode it.
+    const encodedImage = Buffer.from(imageFile).toString('base64');
+
+    const request = {
+      name,
+      rawDocument: {
+        content: encodedImage,
+        mimeType: 'application/pdf',
+      },
+    };
+
+    // Recognizes text entities in the PDF document
+    const [result] = await client.processDocument(request);
+
+    console.log('Document processing complete.');
+
+    // Read the text recognition output from the processor
+    // For a full list of Document object attributes,
+    // please reference this page: https://googleapis.dev/nodejs/documentai/latest/index.html
+    const {document} = result;
+    const {text} = document;
+
+    // Read the text recognition output from the processor
+    console.log(`Full document text: ${JSON.stringify(text)}`);
+    console.log(`There are ${document.pages.length} page(s) in this document.`);
+    for (const page of document.pages) {
+      console.log(`Page ${page.pageNumber}`);
+      printPageDimensions(page.dimension);
+      printDetectedLanguages(page.detectedLanguages);
+      printParagraphs(page.paragraphs, text);
+      printBlocks(page.blocks, text);
+      printLines(page.lines, text);
+      printTokens(page.tokens, text);
+    }
+  }
+
+  const printPageDimensions = dimension => {
+    console.log(`    Width: ${dimension.width}`);
+    console.log(`    Height: ${dimension.height}`);
+  };
+
+  const printDetectedLanguages = detectedLanguages => {
+    console.log('    Detected languages:');
+    for (const lang of detectedLanguages) {
+      const code = lang.languageCode;
+      const confPercent = lang.confidence * 100;
+      console.log(`        ${code} (${confPercent.toFixed(2)}% confidence)`);
+    }
+  };
+
+  const printParagraphs = (paragraphs, text) => {
+    console.log(`    ${paragraphs.length} paragraphs detected:`);
+    const firstParagraphText = getText(paragraphs[0].layout.textAnchor, text);
+    console.log(
+      `        First paragraph text: ${JSON.stringify(firstParagraphText)}`
+    );
+    const lastParagraphText = getText(
+      paragraphs[paragraphs.length - 1].layout.textAnchor,
+      text
+    );
+    console.log(
+      `        Last paragraph text: ${JSON.stringify(lastParagraphText)}`
+    );
+  };
+
+  const printBlocks = (blocks, text) => {
+    console.log(`    ${blocks.length} blocks detected:`);
+    const firstBlockText = getText(blocks[0].layout.textAnchor, text);
+    console.log(`        First block text: ${JSON.stringify(firstBlockText)}`);
+    const lastBlockText = getText(
+      blocks[blocks.length - 1].layout.textAnchor,
+      text
+    );
+    console.log(`        Last block text: ${JSON.stringify(lastBlockText)}`);
+  };
+
+  const printLines = (lines, text) => {
+    console.log(`    ${lines.length} lines detected:`);
+    const firstLineText = getText(lines[0].layout.textAnchor, text);
+    console.log(`        First line text: ${JSON.stringify(firstLineText)}`);
+    const lastLineText = getText(
+      lines[lines.length - 1].layout.textAnchor,
+      text
+    );
+    console.log(`        Last line text: ${JSON.stringify(lastLineText)}`);
+  };
+
+  const printTokens = (tokens, text) => {
+    console.log(`    ${tokens.length} tokens detected:`);
+    const firstTokenText = getText(tokens[0].layout.textAnchor, text);
+    console.log(`        First token text: ${JSON.stringify(firstTokenText)}`);
+    const firstTokenBreakType = tokens[0].detectedBreak.type;
+    console.log(`        First token break type: ${firstTokenBreakType}`);
+    const lastTokenText = getText(
+      tokens[tokens.length - 1].layout.textAnchor,
+      text
+    );
+    console.log(`        Last token text: ${JSON.stringify(lastTokenText)}`);
+    const lastTokenBreakType = tokens[tokens.length - 1].detectedBreak.type;
+    console.log(`        Last token break type: ${lastTokenBreakType}`);
+  };
+
+  // Extract shards from the text field
+  const getText = (textAnchor, text) => {
+    if (!textAnchor.textSegments || textAnchor.textSegments.length === 0) {
+      return '';
+    }
+
+    // First shard in document doesn't have startIndex property
+    const startIndex = textAnchor.textSegments[0].startIndex || 0;
+    const endIndex = textAnchor.textSegments[0].endIndex;
+
+    return text.substring(startIndex, endIndex);
+  };
+
+  // [END documentai_process_ocr_document]
+  await processDocument();
+}
+
+main(...process.argv.slice(2)).catch(err => {
+  console.error(err);
+  process.exitCode = 1;
+});
diff --git a/document-ai/process-document-quality.js b/document-ai/process-document-quality.js
new file mode 100644
index 0000000000..80d3a291fa
--- /dev/null
+++ b/document-ai/process-document-quality.js
@@ -0,0 +1,87 @@
+/**
+ * Copyright 2021, Google, Inc.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+async function main(projectId, location, processorId, filePath) {
+  // [START documentai_process_quality_document]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_PROJECT_LOCATION'; // Format is 'us' or 'eu'
+  // const processorId = 'YOUR_PROCESSOR_ID'; // Create processor in Cloud Console
+  // const filePath = '/path/to/local/pdf';
+
+  const {DocumentProcessorServiceClient} =
+    require('@google-cloud/documentai').v1beta3;
+
+  // Instantiates a client
+  const client = new DocumentProcessorServiceClient();
+
+  async function processDocument() {
+    // The full resource name of the processor, e.g.:
+    // projects/project-id/locations/location/processor/processor-id
+    // You must create new processors in the Cloud Console first
+    const name = `projects/${projectId}/locations/${location}/processors/${processorId}`;
+
+    // Read the file into memory.
+    const fs = require('fs').promises;
+    const imageFile = await fs.readFile(filePath);
+
+    // Convert the image data to a Buffer and base64 encode it.
+    const encodedImage = Buffer.from(imageFile).toString('base64');
+
+    const request = {
+      name,
+      rawDocument: {
+        content: encodedImage,
+        mimeType: 'application/pdf',
+      },
+    };
+
+    // Recognizes text entities in the PDF document
+    const [result] = await client.processDocument(request);
+
+    console.log('Document processing complete.');
+
+    // Read the quality-specific information from the output from the
+    // Intelligent Document Quality Processor:
+    // https://cloud.google.com/document-ai/docs/processors-list#processor_doc-quality-processor
+    // OCR and other data is also present in the quality processor's response.
+    // Please see the OCR and other samples for how to parse other data in the
+    // response.
+    const {document} = result;
+    for (const entity of document.entities) {
+      const entityConf = entity.confidence * 100;
+      const pageNum = parseInt(entity.pageAnchor.pageRefs.page) + 1 || 1;
+      console.log(
+        `Page ${pageNum} has a quality score of ${entityConf.toFixed(2)}%:`
+      );
+      for (const prop of entity.properties) {
+        const propConf = prop.confidence * 100;
+        console.log(`\t* ${prop.type} score of ${propConf.toFixed(2)}%`);
+      }
+    }
+  }
+
+  // [END documentai_process_quality_document]
+  await processDocument();
+}
+
+main(...process.argv.slice(2)).catch(err => {
+  console.error(err);
+  process.exitCode = 1;
+});
diff --git a/document-ai/process-document-specialized.js b/document-ai/process-document-specialized.js
new file mode 100644
index 0000000000..ceed144893
--- /dev/null
+++ b/document-ai/process-document-specialized.js
@@ -0,0 +1,95 @@
+/**
+ * Copyright 2021, Google, Inc.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+async function main(projectId, location, processorId, filePath) {
+  // [START documentai_process_specialized_document]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_PROJECT_LOCATION'; // Format is 'us' or 'eu'
+  // const processorId = 'YOUR_PROCESSOR_ID'; // Create processor in Cloud Console
+  // const filePath = '/path/to/local/pdf';
+
+  const {DocumentProcessorServiceClient} =
+    require('@google-cloud/documentai').v1beta3;
+
+  // Instantiates a client
+  const client = new DocumentProcessorServiceClient();
+
+  async function processDocument() {
+    // The full resource name of the processor, e.g.:
+    // projects/project-id/locations/location/processor/processor-id
+    // You must create new processors in the Cloud Console first
+    const name = `projects/${projectId}/locations/${location}/processors/${processorId}`;
+
+    // Read the file into memory.
+    const fs = require('fs').promises;
+    const imageFile = await fs.readFile(filePath);
+
+    // Convert the image data to a Buffer and base64 encode it.
+    const encodedImage = Buffer.from(imageFile).toString('base64');
+
+    const request = {
+      name,
+      rawDocument: {
+        content: encodedImage,
+        mimeType: 'application/pdf',
+      },
+    };
+
+    // Recognizes text entities in the PDF document
+    const [result] = await client.processDocument(request);
+
+    console.log('Document processing complete.');
+
+    // Read fields specificly from the specalized US drivers license processor:
+    // https://cloud.google.com/document-ai/docs/processors-list#processor_us-driver-license-parser
+    // retriving data from other specalized processors follow a similar pattern.
+    // For a complete list of processors see:
+    // https://cloud.google.com/document-ai/docs/processors-list
+    //
+    // OCR and other data is also present in the quality processor's response.
+    // Please see the OCR and other samples for how to parse other data in the
+    // response.
+    const {document} = result;
+    for (const entity of document.entities) {
+      // Fields detected. For a full list of fields for each processor see
+      // the processor documentation:
+      // https://cloud.google.com/document-ai/docs/processors-list
+      const key = entity.type;
+      // some other value formats in addition to text are availible
+      // e.g. dates: `entity.normalizedValue.dateValue.year`
+      const textValue =
+        entity.textAnchor !== null ? entity.textAnchor.content : '';
+      const conf = entity.confidence * 100;
+      console.log(
+        `* ${JSON.stringify(key)}: ${JSON.stringify(textValue)}(${conf.toFixed(
+          2
+        )}% confident)`
+      );
+    }
+  }
+
+  // [END documentai_process_specialized_document]
+  await processDocument();
+}
+
+main(...process.argv.slice(2)).catch(err => {
+  console.error(err);
+  process.exitCode = 1;
+});
diff --git a/document-ai/process-document-splitter.js b/document-ai/process-document-splitter.js
new file mode 100644
index 0000000000..4d23c9be06
--- /dev/null
+++ b/document-ai/process-document-splitter.js
@@ -0,0 +1,107 @@
+/**
+ * Copyright 2021, Google, Inc.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+async function main(projectId, location, processorId, filePath) {
+  // [START documentai_process_splitter_document]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_PROJECT_LOCATION'; // Format is 'us' or 'eu'
+  // const processorId = 'YOUR_PROCESSOR_ID'; // Create processor in Cloud Console
+  // const filePath = '/path/to/local/pdf';
+
+  const {DocumentProcessorServiceClient} =
+    require('@google-cloud/documentai').v1beta3;
+
+  // Instantiates a client
+  const client = new DocumentProcessorServiceClient();
+
+  async function processDocument() {
+    // The full resource name of the processor, e.g.:
+    // projects/project-id/locations/location/processor/processor-id
+    // You must create new processors in the Cloud Console first
+    const name = `projects/${projectId}/locations/${location}/processors/${processorId}`;
+
+    // Read the file into memory.
+    const fs = require('fs').promises;
+    const imageFile = await fs.readFile(filePath);
+
+    // Convert the image data to a Buffer and base64 encode it.
+    const encodedImage = Buffer.from(imageFile).toString('base64');
+
+    const request = {
+      name,
+      rawDocument: {
+        content: encodedImage,
+        mimeType: 'application/pdf',
+      },
+    };
+
+    // Recognizes text entities in the PDF document
+    const [result] = await client.processDocument(request);
+
+    console.log('Document processing complete.');
+
+    // Read fields specificly from the specalized US drivers license processor:
+    // https://cloud.google.com/document-ai/docs/processors-list#processor_us-driver-license-parser
+    // retriving data from other specalized processors follow a similar pattern.
+    // For a complete list of processors see:
+    // https://cloud.google.com/document-ai/docs/processors-list
+    //
+    // OCR and other data is also present in the quality processor's response.
+    // Please see the OCR and other samples for how to parse other data in the
+    // response.
+    const {document} = result;
+    console.log(`Found ${document.entities.length} subdocuments:`);
+    for (const entity of document.entities) {
+      const conf = entity.confidence * 100;
+      const pagesRange = pageRefsToRange(entity.pageAnchor.pageRefs);
+      if (entity.type !== '') {
+        console.log(
+          `${conf.toFixed(2)}% confident that ${pagesRange} a "${
+            entity.type
+          }" subdocument.`
+        );
+      } else {
+        console.log(
+          `${conf.toFixed(2)}% confident that ${pagesRange} a subdocument.`
+        );
+      }
+    }
+  }
+
+  // Converts a page ref to a string describing the page or page range.
+  const pageRefsToRange = pageRefs => {
+    if (pageRefs.length === 1) {
+      const num = parseInt(pageRefs[0].page) + 1 || 1;
+      return `page ${num} is`;
+    } else {
+      const start = parseInt(pageRefs[0].page) + 1 || 1;
+      const end = parseInt(pageRefs[1].page) + 1;
+      return `pages ${start} to ${end} are`;
+    }
+  };
+
+  // [END documentai_process_splitter_document]
+  await processDocument();
+}
+
+main(...process.argv.slice(2)).catch(err => {
+  console.error(err);
+  process.exitCode = 1;
+});
diff --git a/document-ai/process-document.js b/document-ai/process-document.js
new file mode 100644
index 0000000000..f099b26a20
--- /dev/null
+++ b/document-ai/process-document.js
@@ -0,0 +1,106 @@
+/**
+ * Copyright 2020, Google, Inc.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+async function main(projectId, location, processorId, filePath) {
+  // [START documentai_process_document]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_PROJECT_LOCATION'; // Format is 'us' or 'eu'
+  // const processorId = 'YOUR_PROCESSOR_ID'; // Create processor in Cloud Console
+  // const filePath = '/path/to/local/pdf';
+
+  const {DocumentProcessorServiceClient} =
+    require('@google-cloud/documentai').v1;
+
+  // Instantiates a client
+  const client = new DocumentProcessorServiceClient();
+
+  async function processDocument() {
+    // The full resource name of the processor, e.g.:
+    // projects/project-id/locations/location/processor/processor-id
+    // You must create new processors in the Cloud Console first
+    const name = `projects/${projectId}/locations/${location}/processors/${processorId}`;
+
+    // Read the file into memory.
+    const fs = require('fs').promises;
+    const imageFile = await fs.readFile(filePath);
+
+    // Convert the image data to a Buffer and base64 encode it.
+    const encodedImage = Buffer.from(imageFile).toString('base64');
+
+    const request = {
+      name,
+      rawDocument: {
+        content: encodedImage,
+        mimeType: 'application/pdf',
+      },
+    };
+
+    // Recognizes text entities in the PDF document
+    const [result] = await client.processDocument(request);
+    const {document} = result;
+
+    // Get all of the document text as one big string
+    const {text} = document;
+
+    // Extract shards from the text field
+    const getText = textAnchor => {
+      if (!textAnchor.textSegments || textAnchor.textSegments.length === 0) {
+        return '';
+      }
+
+      // First shard in document doesn't have startIndex property
+      const startIndex = textAnchor.textSegments[0].startIndex || 0;
+      const endIndex = textAnchor.textSegments[0].endIndex;
+
+      return text.substring(startIndex, endIndex);
+    };
+
+    // Read the text recognition output from the processor
+    console.log('The document contains the following paragraphs:');
+    const [page1] = document.pages;
+    const {paragraphs} = page1;
+
+    for (const paragraph of paragraphs) {
+      const paragraphText = getText(paragraph.layout.textAnchor);
+      console.log(`Paragraph text:\n${paragraphText}`);
+    }
+
+    // Form parsing provides additional output about
+    // form-formatted PDFs. You  must create a form
+    // processor in the Cloud Console to see full field details.
+    console.log('\nThe following form key/value pairs were detected:');
+
+    const {formFields} = page1;
+    for (const field of formFields) {
+      const fieldName = getText(field.fieldName.textAnchor);
+      const fieldValue = getText(field.fieldValue.textAnchor);
+
+      console.log('Extracted key value pair:');
+      console.log(`\t(${fieldName}, ${fieldValue})`);
+    }
+  }
+  // [END documentai_process_document]
+  await processDocument();
+}
+
+main(...process.argv.slice(2)).catch(err => {
+  console.error(err);
+  process.exitCode = 1;
+});
diff --git a/document-ai/quickstart.js b/document-ai/quickstart.js
new file mode 100644
index 0000000000..a1fe28e1ad
--- /dev/null
+++ b/document-ai/quickstart.js
@@ -0,0 +1,94 @@
+/**
+ * Copyright 2020, Google, Inc.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+async function main(projectId, location, processorId, filePath) {
+  // [START documentai_quickstart]
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_PROJECT_LOCATION'; // Format is 'us' or 'eu'
+  // const processorId = 'YOUR_PROCESSOR_ID'; // Create processor in Cloud Console
+  // const filePath = '/path/to/local/pdf';
+
+  const {DocumentProcessorServiceClient} =
+    require('@google-cloud/documentai').v1;
+
+  // Instantiates a client
+  // apiEndpoint regions available: eu-documentai.googleapis.com, us-documentai.googleapis.com (Required if using eu based processor)
+  // const client = new DocumentProcessorServiceClient({apiEndpoint: 'eu-documentai.googleapis.com'});
+  const client = new DocumentProcessorServiceClient();
+
+  async function quickstart() {
+    // The full resource name of the processor, e.g.:
+    // projects/project-id/locations/location/processor/processor-id
+    // You must create new processors in the Cloud Console first
+    const name = `projects/${projectId}/locations/${location}/processors/${processorId}`;
+
+    // Read the file into memory.
+    const fs = require('fs').promises;
+    const imageFile = await fs.readFile(filePath);
+
+    // Convert the image data to a Buffer and base64 encode it.
+    const encodedImage = Buffer.from(imageFile).toString('base64');
+
+    const request = {
+      name,
+      rawDocument: {
+        content: encodedImage,
+        mimeType: 'application/pdf',
+      },
+    };
+
+    // Recognizes text entities in the PDF document
+    const [result] = await client.processDocument(request);
+    const {document} = result;
+
+    // Get all of the document text as one big string
+    const {text} = document;
+
+    // Extract shards from the text field
+    const getText = textAnchor => {
+      if (!textAnchor.textSegments || textAnchor.textSegments.length === 0) {
+        return '';
+      }
+
+      // First shard in document doesn't have startIndex property
+      const startIndex = textAnchor.textSegments[0].startIndex || 0;
+      const endIndex = textAnchor.textSegments[0].endIndex;
+
+      return text.substring(startIndex, endIndex);
+    };
+
+    // Read the text recognition output from the processor
+    console.log('The document contains the following paragraphs:');
+    const [page1] = document.pages;
+    const {paragraphs} = page1;
+
+    for (const paragraph of paragraphs) {
+      const paragraphText = getText(paragraph.layout.textAnchor);
+      console.log(`Paragraph text:\n${paragraphText}`);
+    }
+  }
+  // [END documentai_quickstart]
+  await quickstart();
+}
+
+main(...process.argv.slice(2)).catch(err => {
+  console.error(err);
+  process.exitCode = 1;
+});
diff --git a/document-ai/resources/document_quality_poor.pdf b/document-ai/resources/document_quality_poor.pdf
new file mode 100644
index 0000000000..3a34a925c0
Binary files /dev/null and b/document-ai/resources/document_quality_poor.pdf differ
diff --git a/document-ai/resources/handwritten_form.pdf b/document-ai/resources/handwritten_form.pdf
new file mode 100644
index 0000000000..2189ffffd0
Binary files /dev/null and b/document-ai/resources/handwritten_form.pdf differ
diff --git a/document-ai/resources/invoice.pdf b/document-ai/resources/invoice.pdf
new file mode 100644
index 0000000000..7722734a43
Binary files /dev/null and b/document-ai/resources/invoice.pdf differ
diff --git a/document-ai/resources/multi_document.pdf b/document-ai/resources/multi_document.pdf
new file mode 100644
index 0000000000..7ea62eb8f7
Binary files /dev/null and b/document-ai/resources/multi_document.pdf differ
diff --git a/document-ai/resources/us_driver_license.pdf b/document-ai/resources/us_driver_license.pdf
new file mode 100644
index 0000000000..f8f62d902e
Binary files /dev/null and b/document-ai/resources/us_driver_license.pdf differ
diff --git a/document-ai/test/.eslintrc.yml b/document-ai/test/.eslintrc.yml
new file mode 100644
index 0000000000..29af919cd8
--- /dev/null
+++ b/document-ai/test/.eslintrc.yml
@@ -0,0 +1,5 @@
+---
+env:
+  mocha: true
+rules:
+  node/no-extraneous-require: off
diff --git a/document-ai/test/batch-process-document.test.js b/document-ai/test/batch-process-document.test.js
new file mode 100644
index 0000000000..4e58fdb776
--- /dev/null
+++ b/document-ai/test/batch-process-document.test.js
@@ -0,0 +1,61 @@
+// Copyright 2019 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+'use strict';
+
+const {Storage} = require('@google-cloud/storage');
+const {DocumentProcessorServiceClient} =
+  require('@google-cloud/documentai').v1beta3;
+const client = new DocumentProcessorServiceClient({
+  apiEndpoint: 'us-documentai.googleapis.com',
+});
+
+const cp = require('child_process');
+const assert = require('assert');
+const {describe, it, before, after} = require('mocha');
+const uuid = require('uuid');
+
+const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
+
+const storage = new Storage();
+const bucketName = `nodejs-docs-samples-test-${uuid.v4()}`;
+const cmd = 'node batch-process-document.js';
+
+const testProcessDocument = {
+  projectId: '',
+  location: 'us',
+  processorId: '8f1123c1b125e0b7',
+  gcsInputUri: 'gs://cloud-samples-data/documentai/invoice.pdf',
+  gcsOutputUriPrefix: uuid.v4(),
+};
+
+describe('Document AI batch parse form', () => {
+  before(async () => {
+    testProcessDocument.projectId = await client.getProjectId();
+    await storage.createBucket(bucketName);
+  });
+
+  after(async () => {
+    const bucket = storage.bucket(bucketName);
+    await bucket.deleteFiles({force: true});
+    await bucket.delete();
+  });
+
+  it('should parse the GCS invoice example as a form', async () => {
+    const output = execSync(
+      `${cmd} ${testProcessDocument.projectId} ${testProcessDocument.location} ${testProcessDocument.processorId} ${testProcessDocument.gcsInputUri} gs://${bucketName} ${testProcessDocument.gcsOutputUriPrefix}`
+    );
+    assert.notStrictEqual(output.indexOf('Extracted'), -1);
+  });
+});
diff --git a/document-ai/test/process-document-form.test.js b/document-ai/test/process-document-form.test.js
new file mode 100644
index 0000000000..3f4e457e5d
--- /dev/null
+++ b/document-ai/test/process-document-form.test.js
@@ -0,0 +1,60 @@
+/**
+ * Copyright 2021, Google, Inc.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+const path = require('path');
+const assert = require('assert');
+const cp = require('child_process');
+
+const {DocumentProcessorServiceClient} =
+  require('@google-cloud/documentai').v1beta3;
+const client = new DocumentProcessorServiceClient({
+  apiEndpoint: 'us-documentai.googleapis.com',
+});
+
+const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
+
+const cwd = path.join(__dirname, '..');
+const LOCATION = 'us';
+const PROCESSOR_ID = '8f1123c1b125e0b7';
+
+const fileName = 'invoice.pdf';
+const filePath = path.resolve(path.join(__dirname, `../resources/${fileName}`));
+
+describe('Process form document', () => {
+  let projectId;
+  before(async () => {
+    projectId = await client.getProjectId();
+  });
+  it('should run document (process form) (v1)', async () => {
+    const stdout = execSync(
+      `node ./process-document-form.js ${projectId} ${LOCATION} ${PROCESSOR_ID} ${filePath}`,
+      {
+        cwd,
+      }
+    );
+    assert.notStrictEqual(
+      stdout.indexOf('There are 1 page(s) in this document.'),
+      -1
+    );
+    assert.notStrictEqual(
+      stdout.indexOf('Table with 4 columns and 6 rows'),
+      -1
+    );
+    assert.notStrictEqual(stdout.indexOf('Found 13 form field(s)'), -1);
+    assert.notStrictEqual(stdout.indexOf('$2140.00'), -1);
+  });
+});
diff --git a/document-ai/test/process-document-ocr.test.js b/document-ai/test/process-document-ocr.test.js
new file mode 100644
index 0000000000..8fe98ac40a
--- /dev/null
+++ b/document-ai/test/process-document-ocr.test.js
@@ -0,0 +1,53 @@
+/**
+ * Copyright 2021, Google, Inc.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+const path = require('path');
+const assert = require('assert');
+const cp = require('child_process');
+
+const {DocumentProcessorServiceClient} =
+  require('@google-cloud/documentai').v1beta3;
+const client = new DocumentProcessorServiceClient({
+  apiEndpoint: 'us-documentai.googleapis.com',
+});
+
+const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
+
+const cwd = path.join(__dirname, '..');
+const LOCATION = 'us';
+const PROCESSOR_ID = 'd9f262d374c21325';
+
+const fileName = 'handwritten_form.pdf';
+const filePath = path.resolve(path.join(__dirname, `../resources/${fileName}`));
+
+describe('Process OCR document', () => {
+  let projectId;
+  before(async () => {
+    projectId = await client.getProjectId();
+  });
+  it('should run document (process invoice) (v1)', async () => {
+    const stdout = execSync(
+      `node ./process-document-ocr.js ${projectId} ${LOCATION} ${PROCESSOR_ID} ${filePath}`,
+      {
+        cwd,
+      }
+    );
+    assert.notStrictEqual(stdout.indexOf('Page 1'), -1);
+    assert.notStrictEqual(stdout.indexOf('en'), -1);
+    assert.notStrictEqual(stdout.indexOf('FakeDoc'), -1);
+  });
+});
diff --git a/document-ai/test/process-document-quality.test.js b/document-ai/test/process-document-quality.test.js
new file mode 100644
index 0000000000..4976b61d8e
--- /dev/null
+++ b/document-ai/test/process-document-quality.test.js
@@ -0,0 +1,53 @@
+/**
+ * Copyright 2021, Google, Inc.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+const path = require('path');
+const assert = require('assert');
+const cp = require('child_process');
+
+const {DocumentProcessorServiceClient} =
+  require('@google-cloud/documentai').v1beta3;
+const client = new DocumentProcessorServiceClient({
+  apiEndpoint: 'us-documentai.googleapis.com',
+});
+
+const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
+
+const cwd = path.join(__dirname, '..');
+const LOCATION = 'us';
+const PROCESSOR_ID = 'face29cdcce978c0';
+
+const fileName = 'document_quality_poor.pdf';
+const filePath = path.resolve(path.join(__dirname, `../resources/${fileName}`));
+
+describe('Process quality document', () => {
+  let projectId;
+  before(async () => {
+    projectId = await client.getProjectId();
+  });
+  it('should run document (process quality) (v1beta3)', async () => {
+    const stdout = execSync(
+      `node ./process-document-quality.js ${projectId} ${LOCATION} ${PROCESSOR_ID} ${filePath}`,
+      {
+        cwd,
+      }
+    );
+    assert.notStrictEqual(stdout.indexOf('Page 1 has a quality score of'), -1);
+    assert.notStrictEqual(stdout.indexOf('defect_blurry score of 9'), -1);
+    assert.notStrictEqual(stdout.indexOf('defect_noisy'), -1);
+  });
+});
diff --git a/document-ai/test/process-document-specialized.test.js b/document-ai/test/process-document-specialized.test.js
new file mode 100644
index 0000000000..d937a06c46
--- /dev/null
+++ b/document-ai/test/process-document-specialized.test.js
@@ -0,0 +1,52 @@
+/**
+ * Copyright 2021, Google, Inc.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+const path = require('path');
+const assert = require('assert');
+const cp = require('child_process');
+
+const {DocumentProcessorServiceClient} =
+  require('@google-cloud/documentai').v1beta3;
+const client = new DocumentProcessorServiceClient({
+  apiEndpoint: 'us-documentai.googleapis.com',
+});
+
+const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
+
+const cwd = path.join(__dirname, '..');
+const LOCATION = 'us';
+const PROCESSOR_ID = 'bb340a5e47a6c1e';
+
+const fileName = 'us_driver_license.pdf';
+const filePath = path.resolve(path.join(__dirname, `../resources/${fileName}`));
+
+describe('Process specialized document', () => {
+  let projectId;
+  before(async () => {
+    projectId = await client.getProjectId();
+  });
+  it('should run document (specialized) (v1beta3)', async () => {
+    const stdout = execSync(
+      `node ./process-document-specialized.js ${projectId} ${LOCATION} ${PROCESSOR_ID} ${filePath}`,
+      {
+        cwd,
+      }
+    );
+    assert.notStrictEqual(stdout.indexOf('Document Id'), -1);
+    assert.notStrictEqual(stdout.indexOf('97551579'), -1);
+  });
+});
diff --git a/document-ai/test/process-document-splitter.test.js b/document-ai/test/process-document-splitter.test.js
new file mode 100644
index 0000000000..a7fecb63ce
--- /dev/null
+++ b/document-ai/test/process-document-splitter.test.js
@@ -0,0 +1,59 @@
+/**
+ * Copyright 2021, Google, Inc.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+const path = require('path');
+const assert = require('assert');
+const cp = require('child_process');
+
+const {DocumentProcessorServiceClient} =
+  require('@google-cloud/documentai').v1beta3;
+const client = new DocumentProcessorServiceClient({
+  apiEndpoint: 'us-documentai.googleapis.com',
+});
+
+const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
+
+const cwd = path.join(__dirname, '..');
+const LOCATION = 'us';
+const PROCESSOR_ID = '8f447646e4ec6fa2';
+
+const fileName = 'multi_document.pdf';
+const filePath = path.resolve(path.join(__dirname, `../resources/${fileName}`));
+
+describe('Process splitter document', () => {
+  let projectId;
+  before(async () => {
+    projectId = await client.getProjectId();
+  });
+  it('should run document (splitter) (v1beta3)', async () => {
+    const stdout = execSync(
+      `node ./process-document-splitter.js ${projectId} ${LOCATION} ${PROCESSOR_ID} ${filePath}`,
+      {
+        cwd,
+      }
+    );
+    assert.notStrictEqual(stdout.indexOf('Found 8 subdocuments'), -1);
+    assert.notStrictEqual(
+      stdout.indexOf('confident that pages 1 to 2 are a subdocument'),
+      -1
+    );
+    assert.notStrictEqual(
+      stdout.indexOf('confident that page 10 is a subdocument'),
+      -1
+    );
+  });
+});
diff --git a/document-ai/test/process-document.test.js b/document-ai/test/process-document.test.js
new file mode 100644
index 0000000000..69bcc77722
--- /dev/null
+++ b/document-ai/test/process-document.test.js
@@ -0,0 +1,52 @@
+/**
+ * Copyright 2019, Google, Inc.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+const path = require('path');
+const assert = require('assert');
+const cp = require('child_process');
+
+const {DocumentProcessorServiceClient} =
+  require('@google-cloud/documentai').v1beta3;
+const client = new DocumentProcessorServiceClient({
+  apiEndpoint: 'us-documentai.googleapis.com',
+});
+
+const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
+
+const cwd = path.join(__dirname, '..');
+const LOCATION = 'us';
+const PROCESSOR_ID = '8f1123c1b125e0b7';
+
+const fileName = 'invoice.pdf';
+const filePath = path.resolve(path.join(__dirname, `../resources/${fileName}`));
+
+describe('Process document', () => {
+  let projectId;
+  before(async () => {
+    projectId = await client.getProjectId();
+  });
+  it('should run document (process invoice) (v1)', async () => {
+    const stdout = execSync(
+      `node ./process-document.js ${projectId} ${LOCATION} ${PROCESSOR_ID} ${filePath}`,
+      {
+        cwd,
+      }
+    );
+    assert.notStrictEqual(stdout.indexOf('Paragraph'), -1);
+    assert.notStrictEqual(stdout.indexOf('Extracted'), -1);
+  });
+});
diff --git a/document-ai/test/quickstart.test.js b/document-ai/test/quickstart.test.js
new file mode 100644
index 0000000000..ae274f1d50
--- /dev/null
+++ b/document-ai/test/quickstart.test.js
@@ -0,0 +1,52 @@
+/**
+ * Copyright 2019, Google, Inc.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+const path = require('path');
+const assert = require('assert');
+const cp = require('child_process');
+
+const {DocumentProcessorServiceClient} =
+  require('@google-cloud/documentai').v1beta3;
+const client = new DocumentProcessorServiceClient({
+  apiEndpoint: 'us-documentai.googleapis.com',
+});
+
+const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
+
+const cwd = path.join(__dirname, '..');
+const LOCATION = 'us';
+const PROCESSOR_ID = '8f1123c1b125e0b7';
+
+const fileName = 'invoice.pdf';
+const filePath = path.resolve(path.join(__dirname, `../resources/${fileName}`));
+
+describe('Quickstart', () => {
+  let projectId;
+  before(async () => {
+    projectId = await client.getProjectId();
+  });
+
+  it('should run quickstart', async () => {
+    const stdout = execSync(
+      `node ./quickstart.js ${projectId} ${LOCATION} ${PROCESSOR_ID} ${filePath}`,
+      {
+        cwd,
+      }
+    );
+    assert.notStrictEqual(stdout.indexOf('Paragraph'), -1);
+  });
+});