PDFix OCR with Paddle

Docker image based PDF text recogntion with OCR Paddle and PDFix SDK

System Requirements

• Docker Engine https://docs.docker.com/engine/install/

Run a Docker image

Build docker image

Build the docker image with the name pdfix-paddle-ocr. You can choose another name if you want.

docker build -t pdfix-paddle-ocr .

Run docker container

To run docker container you should map directories with PDF documents to the container (-v parameter) and pass paths to input/output PDF document in the running container

Example:

• Your input PDF is: /home/pdfs_in/scanned.pdf
• Your output PDF is: /home/pdfs_out/ocred.pdf

Path /home/pdfs_in is mapped to /data_in and /home/pdfs_out is mapped to /data_out

docker run --rm -v /home/pdfs_in:/data_in -v /home/pdfs_out:/data_out -it pdfix-paddle-ocr --name $LICENSE_NAME --key $LICENSE_KEY tag --input /data_in/scanned.pdf --output /data_out/ocred.pdf

Arguments --input, --output, --name, --key are the same as the CLI. Argument tag says that pdf should be autotaged. Argument config can be used instead and that just prints or copies config.json.

Run debug docker container

To add debug features you need to share folders to container:

• source code is located in /usr/paddle-ocr/src
• folder for image outputs where bboxes recognized by paddle are visualized is located at /usr/paddle-ocr/images-1.0

In example under this your development code is located in /home/src and after run you will see what paddle recognised in /home/pdf-images. Both folders need to exists before running docker.

docker run --rm -v /home/pdfs_in:/data_in -v /home/pdfs_out:/data_out -v /home/src:/usr/paddle-ocr/src -v /home/pdf-images:/usr/paddle-ocr/images-1.0 -it tag pdfix-paddle-ocr --input /data_in/scanned.pdf --output /data_out/ocred.pdf --lang eng --name $LICENSE_NAME --key $LICENSE_KEY

License & libraries used

• PDFix SDK - https://pdfix.net/terms
• OCR Paddle - https://github.com/PaddlePaddle/PaddleOCR

Trial version of the PDFix SDK may apply a watermark on the page and redact random parts of the PDF.

Help & Support

To obtain a PDFix SDK license or report an issue please contact us at support@pdfix.net. For more information visit https://pdfix.net