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Enter a password
Choose a strong password and keep it somewhere safe — we cannot recover forgotten ones.
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Password-protect a PDF in your browser before you email tax forms or contracts. Encryption runs on-device; we never see the password.
PDFFree usage today: 0/11 free runs today. See Free vs Pro
Private by design. Heavy tools (OCR) may take a minute on large files.
Protect never transmits your password or file contents to SortMyFile.
Choose a strong password and keep it somewhere safe — we cannot recover forgotten ones.
Share the PDF and send the password on a separate channel.
Encrypt with a password — A colleague sent a multi-part PDF and you only need a subset for a meeting pack. A portal rejects the file shape and you must fix it without desktop Acrobat.
About protect pdf with password free
Yes — we use a browser encrypt library. Strength depends on your password.
No. Unlock only works when you already know it.
Yes — download a new file and keep the source on disk as backup. (Protect PDF.)
After the app shell and libraries are cached by your browser, many PDF tools keep working offline for that session.
Aim under ~50–100 MB depending on device RAM. Very large scans may stall older phones.
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