Autotag PDF Document Using Docling and PDFix SDK

A Dockerized solution for automated PDF tagging using Docling and PDFix SDK. Supports pdf tagging, pdfix layout template generation.

Table of Contents

• Autotag PDF Document Using Docling and PDFix SDK
  • Table of Contents
  • Getting Started
  • Run a Docker Container
    • Run Docker Container for Autotagging
    • Run Docker Container for Template JSON Creation
  • Exporting PDFix Configuration for Integration
  • Model
  • License
  • Help & Support

Getting Started

To use this application, Docker must be installed on the system. If Docker is not installed, please follow the instructions on the official Docker website to install it. First run will pull the docker image, which may take some time. Make your own image for more advanced use.

Run a Docker Container

Run Docker Container for Autotagging

To run the Docker container, map directories containing PDF documents to the container (using the -v parameter) and pass the paths to the input/output PDF documents inside the running container. In this example local folder is maped into container and file input.pdf is taken as input PDF document. Output is saved into current folder as output.pdf.
Threshold is bringed down from default 30% to 10%.
Zoom is increased from default 200% to 400%.

docker run -v $(pwd):/data -w /data --rm pdfix/pdf-accessibility-docling:latest tag --name $LICENSE_NAME --key $LICENSE_KEY -i input.pdf -o output.pdf --threshold 0.1 --zoom 4.0"

These arguments are for an account-based PDFix license.

--name ${LICENSE_NAME} --key ${LICENSE_KEY}

Contact support for more information.

Run Docker Container for Template JSON Creation

Similar as previous but output is JSON file containing layout template for PDFix SDK.

docker run -v $(pwd):/data -w /data --rm pdfix/pdf-accessibility-docling:latest template -i input.pdf -o output.json --threshold 0.1 --zoom 4.0"

Exporting Configuration for Integration

To export the configuration JSON file, use the following command:

docker run -v $(pwd):/data -w /data --rm pdfix/alt-text-blip-large:latest config -o config.json

Model

Used model is Docling-Layout in offline mode (whole model is inside docker image). It is configured to work with CPU.

License

This repository uses the Docling-Layout from HuggingPanda, which is licensed under the Apache License 2.0. See THIRD_PARTY_LICENSES.md for details.

The Docker image includes:

• PDFix SDK, subject to PDFix Terms
• Docling layout model, Apache License 2.0 (HuggingPanda)

Trial version of the PDFix SDK may apply a watermark on the page and redact random parts of the PDF including the scanned image in background. Contact us to get an evaluation or production license.

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