Protect PDF
Add a password to encrypt and secure your PDF documents.
This tool is currently under development. Check back later!
How it works
- 01Select or paste your input into the tool.
- 02Adjust any available options to suit your needs.
- 03Download or copy the generated output instantly.
Frequently asked questions
How to password protect a PDF without Adobe Acrobat?
You can add a password to secure your PDF directly in your browser. Drag your document in, set a password, and download the encrypted PDF file. No external software is required.
What encryption standard does the tool use to lock the PDF?
The tool uses standard PDF password encryption. Once protected, any standard PDF viewer or web browser will require the recipient to enter the password to open the file.
Are my PDF files or passwords sent to a server?
No. Your PDF files and passwords are processed entirely on your local machine using client-side JavaScript. We do not store or transmit your documents or passwords.
Can a password-protected PDF be opened on mobile devices?
Yes, password-protected PDFs can be opened in any standard PDF reader on iOS, Android, macOS, and Windows devices.
What happens if I forget the password I set?
Because all processing happens on your local device and we do not store your data, it is impossible for us to recover or reset passwords. Always keep a backup of the original file.