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Slightly off-topic, pardon me. But, does someone have any good tips on how to remove pdf security?

Let me clarify why; I frequently come across datasheets (eg to flash memory ICs) that have security enabled for some strange reason. Nothing secret, just plainly downloaded from the Internet. I can open, and print, but not highlight or add remarks.

Existing solutions I've found so far are inadequate since they typically are either 'download this obscure-sounding executable', 'upload and convert on this sketchy possibly-malware-injecting-website', or resort to printing the entire thing to a new pdf document (eg via PDF creator) - but this makes text un-highlightable.

I don't mind anything involving hex-editing, some node.js or python-lib, or chanting and dancing, as long as it gets the job done.

I just want to be able to highlight and copy text :(




Use a reader like evince and toggle the checkbox.


Nice! Thanks for that! If you only knew how much I've looked for something like this, and, not to brag or anything, my internet-search-skills are prettttttty sharp.

For others information (from wikipedia): "Evince used to obey the DRM restrictions of PDF files, which may prevent copying, printing, or converting some PDF files, however this has been made optional, and turned off by default[...]"


You're welcome, have fun! I only found out about it by luck myself.




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