Set PDF Password
Choose a PDF, type the password you want, and download a locked copy. The file is protected in your browser — nothing is uploaded. To unlock a file instead, use Remove PDF Password.
Click to choose or drop a PDF here
Ready. PDFs are protected locally and never leave your device.
About Set PDF Password
Protect a PDF with a password in your browser using this free set PDF password tool. Choose a file, type the password you want, and download a locked copy that asks for that password before it will open. Use it to keep contracts, bank statements, ID scans, offer letters, and medical PDFs private before you share them by email, chat, or a cloud folder. Encryption happens on your device, not on a remote processor.
Password protecting a PDF is useful when the contents are confidential but you still need to send the file. Choose a password you can share through a second channel, such as a password manager or a phone call, not in the same email as the attachment. This tool locks a PDF you own or are allowed to protect. It is not a way to restrict a document that belongs to someone else.
Pick an unlocked PDF, set a strong password, confirm it, and download the protected file. Open the download in a reader to confirm it prompts you. If you later need an unlocked copy and you still know the password, use Remove PDF Password. If you need to fix typos first, edit in the PDF editor, then protect.
The new password is applied locally on your device, so the original file is never uploaded to a server. Use this free PDF password protector, lock PDF, and encrypt PDF tool whenever you need private, in-browser PDF protection.
Features
- Lock a PDF with a password and download the protected file
- Process files locally in your browser with no server upload
- Download or copy the result when you are done
- Free to use with no account required
- No signup and no intentional server-side storage of tool input
How to use Set PDF Password
- Open Set PDF Password and choose or drop your file in the browser.
- Set the options you need for this task.
- Run the tool, preview the result, then download or copy the output.
- Your file stays on this device; Free Tool Mate does not upload it for processing.
Suggested next steps
- PDF Watermark — Stamp text or image watermarks on a PDF with position, rotation, and opacity
- PDF Compress — Reduce PDF file size in the browser and download a smaller copy
- PDF Editor — Edit PDF text, erase content, and download the result
Frequently asked questions
Is Set PDF Password free?
Yes. Set PDF Password on Free Tool Mate is free to use in your browser. There is no paid unlock for the core tool features described on this page.
Does Set PDF Password upload my data?
No. Set PDF Password is designed to process your input locally in the browser. Free Tool Mate does not intentionally store tool input or uploaded files on the server.
Do I need an account to use Set PDF Password?
No account is required. Open the page, use Set PDF Password, and leave when you are done.
What can I use Set PDF Password for?
Set PDF Password covers Lock a PDF with a password and download the protected file. It is built for quick, private work in the browser without installing desktop software.