I'm looking for a simple Python solution to convert regular PDF files to PDF/A-3 standard. My requirements are: The code must actually produce valid PDF/A-3 (not just PDF/A-1 or PDF/A-2). It must be easy to use and integrate in Python. Most importantly, I want a free solution or library that does not add watermarks or other artifacts if I don’t buy a license. If you have code examples, that would be highly appreciated. Continue reading...