Protect PDF
Add password protection to your PDF files. Keep your documents secure and private.
Strong Encryption
256-bit Security
Instant Download
Drop your PDF here
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Supported format: .pdf
Add password protection to your PDF files. Keep your documents secure and private.
or click to browse files
Supported format: .pdf
Yes. PDF.it lets you protect PDFs for free, up to 10 times per day. No software needed beyond a free account.
Your PDF is encrypted with 256-bit AES encryption — the same standard used by banks and governments. Anyone without the password will be unable to open the file.
Yes. Use PDF.it's Unlock PDF tool to remove password protection from any PDF you own the password for.
No. Password protection only adds a security layer to your file. All text, images, fonts, and formatting remain completely untouched.
Yes. All files are transferred over HTTPS, processed securely, and automatically deleted after your session. We never store or share your documents.
Free accounts can upload files up to 25MB. Pro and Business accounts can upload files up to 200MB.