Protect PDF
Encrypt your PDF with a password.
Drop your PDFs here
PDF files only
You can also paste with CtrlV
How it works
- 1
Upload one or more PDFs you want to protect.
- 2
Enter a password (at least 6 characters) and choose permissions: print, copy, edit…
- 3
Download the AES-256 encrypted PDF; it will ask for the password when opened.
Frequently asked questions
What encryption is used?
AES-256, the strongest standard supported by Adobe Acrobat, Chrome, Safari and modern PDF readers.
What if I forget the password?
There's no way to recover it: not even we know it, because encryption happens in your browser. Keep it in a password manager.
Is it processed in my browser or on a server?
Protect PDF uses a hybrid engine: whatever can be done in your browser happens there, with nothing uploaded; when the server is needed, files travel encrypted, are processed in memory and deleted after one hour.
Is it free? Are there any limits?
Yes: free, no sign-up, and no watermark on the result. Without signing up, each file can be up to 50 MB (up to 20 files per task); signing in for free or with PRO raises it to 100 MB, and the PRO plan expands request limits and unlocks AI tools.
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