Add OCR Languages

By default the Papermerge docker image includes English, German, French, Italian, Spanish, Dutch, Romanian and Portugues OCR languages.

You can install extra languages by creating a new docker image from base papermerge/papermerge.

Create new docker file with following content:

FROM papermerge/papermerge:3.1

# add Danish and Polish OCR languages
RUN apt install tesseract-ocr-dan tesseract-ocr-pol

All languages are specified in three letters code as per ISO 639-2T standard - second column in the table.

In order to build your image run:

docker build -t mypaper:3.0 -f Dockerfile .

Check that OCR languages were installed:

docker run -it --rm  mypaper:3.0  tesseract --list-langs