bug(pdftojpeg): multilang documents

[Kristinita]

1. Summary

For pdftojpeg command sejda-console incorrect convert to jpeg documents with bilingual text.

2. Data

• KiraDebuggingMultilang.pdf — PDF of my scanned book, that I want convert to image for further processing; text in file on Russian and English

3. Steps to reproduce

I download and install BookAntiqua, Century Schoolbook and Century Schoolbook Bold Italic fonts.

I download and unzip the latest Sejda Console Windows binary for 14.8.2019 → I add path of Sejda bin folder to my PATH environment variable → I run sejda-console command:

sejda-console pdftojpeg -f KiraDebuggingImage.pdf -o .

4. Expected behavior

Poppler output via command pdftoppm -jpeg KiraDebuggingMultilang.pdf KiraMultilang (file without editing):

English symbols preserve.

5. Actual behavior

D:\SashaDebugging\SejdaToTiff>sejda-console pdftojpeg -f KiraDebuggingMultilang.pdf -o .
Configuring Sejda 3.2.83
Document root element "sejda", must match DOCTYPE root "null".
Document is invalid: no grammar found.
Starting execution with arguments: 'pdftojpeg -f KiraDebuggingMultilang.pdf -o .'
Java version: '1.8.0_221'
Validating parameters.
Starting task (org.sejda.impl.sambox.PdfToMultipleImageTask@22555ebf) execution.
Opening D:\SashaDebugging\SejdaToTiff\KiraDebuggingMultilang.pdf
Created output temporary buffer C:\Users\SASHAC~1\AppData\Local\Temp\sejdaTmp1308333151633555382.tmp
Cannot read JBIG2 image: jbig2-imageio is not installed
Task progress: 100% done
Moving C:\Users\SASHAC~1\AppData\Local\Temp\sejdaTmp1308333151633555382.tmp to D:\SashaDebugging\SejdaToTiff\1_KiraDebuggingMultilang.jpg.
Documents converted to JPEG and saved to org.sejda.model.output.FileOrDirectoryTaskOutput@74fe5c40[D:\SashaDebugging\SejdaToTiff]
Task (org.sejda.impl.sambox.PdfToMultipleImageTask@22555ebf) executed in 1 second
Completed execution

• 1_KiraDebuggingMultilang.jpg (file without editing):

English symbols convert incorrect.

6. Not helped

I remove fonts, that I install in section 3 → for fallback fonts I still have expected behavior, when I run Poppler command, and non-expected, if Sejda Console command.

7. Environment

• Windows 10 Enterprise LTSB 64-bit EN
• Java 1.8.0_211
• Sejda Console 3.2.83

Thanks.