Protect PDF with Password Free (AES)

Password-lock sensitive PDFs with AES encryption — contracts, statements, HR files. Batch mode secures whole folders with one password.

Free forever · No watermark · No signup · Files never leave your device. Use it right below — the interactive tool loads with this page.

How to use Protect PDF

What encryption is used?

Standard PDF AES encryption with user and owner passwords — compatible with all major readers.

Can I protect many files at once?

Yes. Batch mode applies the same password to every file and zips the results.

I forgot the password — can you recover it?

No, and neither can anyone else. There is no server copy and no backdoor — keep passwords safe.

What is the owner password for?

It gates printing, copying, and editing separately from opening. Set both on sensitive files.

Does protection survive email and cloud drives?

Yes — encryption travels inside the file itself, however you send or store it.