PDF Password Protector

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Lock your PDF with a password

Encrypt your PDF with a strong 256-bit password so only people with the password can open it. Industry-standard encryption powered by qpdf.

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How to Add a Watermark to a PDF (Protect & Brand Your Documents)

Whether you need to mark a document DRAFT, stamp it CONFIDENTIAL, or brand it with your company name, here's exactly how to add a professional watermark to any PDF.

7 min read
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