Protect PDF
Password-protect a PDF
Secure your PDF with a password and AES encryption so only the right people can open it.
Password-protect a PDF online, free
PDF Vision protects your PDF with a password and strong encryption. Add watermarks, restrict printing, copying and editing, and set an expiry date to keep sensitive documents safe.
Frequently asked questions
What encryption do you use?
PDFs can be encrypted with AES-128 or AES-256, the standard for secure documents.
Can I restrict printing or copying?
Yes — you can block printing, copying and editing on the protected PDF.