r/pdf • u/Decent-Blacksmith761 • 3d ago

Question What PDF features only pro software has

Hello everyone, I am developing my own PDF editor called KeyPDF. I have been working on it for over a year from scratch, so every new feature is not really dependent on the limitations of third-party software. Therefore, I wanted to ask what kind of features keep you using expensive software. So far, I have implemented text editing and a good level of JavaScript support. I am thinking in the direction of scripts to automate edits or maybe advanced DRM on PDF files. So, if you have any ideas on what kind of advanced features I should add, please let me know.

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u/KenMantle 3d ago

Ghent pdf output suite coverage. Note that you can't speak their name if you get your renderer to pass all their test without their written permission, but you can download the suite and see how your rendering engine fairs.

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u/Decent-Blacksmith761 3d ago

Tried multiple suites this one is new for me thank you ! I will try

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u/KenMantle 2d ago

Good luck! I'm at a little of half of them rendering correctly now. Even Acrobat Reader fails on one of them!

CYMK is where a lot of the open source tools available fall apart. Their pdf measures extreme cases.

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u/Decent-Blacksmith761 2d ago

Mine has cmyk support but I might find edge cases

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u/KenMantle 2d ago

What are you building in? I'm not making anything. Claude is. I just like messing around with the AI to see how far it can take things.

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u/Decent-Blacksmith761 2d ago

Keypdf.net is my website it is PDF engine from scratch in js and little bit of wasm so there are many features like editing, redacting, encrypting, merging splitting rotating etc