Protect PDF with a password
Encrypt your PDF with AES-256 so only people with the password can open it. Optionally block printing, copying or editing.
Drop your files here or browse
PDF files to protect with a password
How to use Protect PDF
- 1
Choose your PDFs
Add one or more PDF files.
- 2
Set a password
Type it twice. Longer passwords are safer.
- 3
Choose permissions
Optionally stop printing, copying or editing — even for people who can open it.
- 4
Download
Your encrypted PDF is ready in seconds. We never store the password.
Why choose FileFlexify for Protect PDF?
AES-256 encryption
The strongest standard PDF encryption, supported by Acrobat, Chrome, Edge, Preview and phone apps.
Permission control
Allow or block printing, copying text, editing and commenting.
Owner password
Set a separate password that's needed to change the permissions.
Nothing kept
Your password is erased when the job finishes and files are deleted right after.
Questions & answers
How do I put a password on a PDF?
Upload your PDF, type a password twice and click Protect PDF. Anyone opening the downloaded file will need that password.
How strong is the protection?
Files are encrypted with AES-256, the strongest encryption in the PDF standard. Use a long password — encryption is only as strong as the password.
Can I stop people from printing or copying?
Yes. Open Permissions and switch off printing, copying or editing. Most PDF readers respect these restrictions.
Do you keep my password?
No. It's used once to encrypt the file and removed from our system as soon as the job finishes.
Is it safe to upload my PDF?
Files travel over an encrypted HTTPS connection, are processed automatically without human access, and are deleted as soon as processing ends. Downloads expire after 60 minutes.
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