watermark-pdf/README.md

Watermark

Add watermarks on your PDFs.

How to use

./watermark.sh <PDF FILE>

You can watermark multiple PDFs by using the find command, such as :

find ./folder -name "*.pdf" -exec ./watermark.sh {} \;

The watermarked PDF is named -out.pdf. The original one is not deleted.

How it works

First it creates the watermark in a specific file, then it exports the PDF in multiple PNGs, and watermark each extracted page, still in the PNG format so it cannot be then edited or modified (easily) using some PDF editing software.

The script is pretty short and straightforward to read, you can adapt without much difficulties I believe.

Additional notes

This was part of a personnal project that wasn't supposed to be made public, so excuse the lack of comments and code dirtiness.