PDF Protect & Encrypt

An Open Password (User Password) is required whenever someone attempts to open or view the document. An Owner Password (Permissions Password) prevents unauthorized users from altering document restrictions—such as enabling printing, copying text, or extracting pages—even if they know the open password.

In our security panel, simply uncheck "Allow High-Resolution Printing" and "Allow Content Copying". When someone opens the encrypted document in Adobe Reader, Chrome, or Apple Preview, the print and copy commands will be strictly disabled by the PDF security handler.

Yes, our tool is the safest encryption utility on the web because it runs completely in local RAM. Traditional online encryptors send your unencrypted PDF across the internet to their servers. We perform all key derivation and byte-level AES ciphering in your device's memory; zero unencrypted data ever leaves your computer.

Standard 256-bit AES encryption is mathematically impossible to crack through brute-force attacks within human lifetimes. We strongly recommend noting your password in a secure password manager, as our zero-knowledge architecture means we have no backdoors or recovery keys.