Finds differences between two PDF documents
Project description
pdf-diff
Finds differences between two PDF documents:
- Compares the text layers of two PDF documents and outputs the bounding boxes of changed text in JSON.
- Rasterizes the changed pages in the PDFs to a PNG and draws red outlines around changed text.
The script is written in Python 3, and it relies on the pdftotext program.
Requirements
libxml2 >= 2.7.0, libxslt >= 1.1.23, poppler
Requirements installation for Ubuntu:
sudo apt-get install python3-lxml poppler-utils
Requirements installation for OS X:
brew install libxml2 libxslt poppler
Installation
From PyPI:
pip install pdf-diff
From source:
sudo python3 setup.py install
Running
Turn two PDFs into one large PNG image showing the differences:
pdf-diff before.pdf after.pdf > comparison_output.png
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