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.