Password Protect PDF
Encrypt PDFs with a password
Drop a PDF file
🔒 Files never leave your device
How it works
- 1Upload a PDF
Drop or select your PDF file.
- 2Set a password
Choose a strong password — you cannot recover it if lost.
- 3Download
Save your encrypted PDF.
About Password Protect PDF
Add password protection to any PDF file. Encryption happens in your browser — your file and password never leave your device. Password Protect PDF on DashConvert runs entirely inside your browser using modern JavaScript APIs — no server ever sees your files. That means faster conversions, complete privacy, and no upload limits.
Whether you need to encrypt pdfs with a password for work, study, or personal use, this tool is free to use as many times as you need. There are no watermarks, no sign-up, and no ads inside your documents.
Frequently asked questions
What encryption is used?
AES-128 encryption is applied to the PDF.
Can I lose access to my file?
Yes. If you forget the password, the file cannot be recovered — save the password somewhere safe.
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