100% FREE library for PDF manipulation?

  • Thread starter Thread starter emsimpson92
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emsimpson92

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I'm working on a project that uses OpenXml to modify the contents of a word document, and then it uses interop to save the file as a PDF. I want to be able to password protect the PDF and change other security features, but apparently this isn't something that I can do with interop. I am able to password protect the word document, but when I save it as PDF it loses that password protection. Every library I've found has been free for personal use, but I'm an intern developing a tool for my company, and they don't necessarily want to pay for a license.

I've looked at the acrobat DC SDK a bit, but I can't for the life of me figure out how to include it in my project.

using Acrobat;

doesn't work, and I can't seem to find any .dll files to reference either.

What are my options here?

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