Password Protect PDF
Lock PDFs before you send them.
Drag a PDF here or click to chooseTap to choose a PDF
Same password for several files at onceLetters, numbers, symbols · 4+ characters (8+ with a number recommended)
Encrypted with standard AES-256. If you forget the password nobody can open the file, so keep it somewhere safe.
How to Use
Drag in the PDFs to lock. Several files get the same password.
Type it twice. Letters, numbers and symbols only; 8+ characters with a number is recommended.
Download the locked PDFs and give the password to the recipient through a different channel (text, phone).
FAQ
How secure is it?
Files are encrypted with AES-256 as defined in PDF 2.0; without the password neither the content nor the title can be read. Security ultimately depends on password length, so avoid guessable values like birthdays.
Why are non-ASCII passwords not allowed?
The PDF spec allows them, but viewers handle them differently and sometimes refuse the correct password — macOS Preview could not open such files in our tests. ASCII-only prevents recipients from being locked out.
How does the recipient open it?
Chrome, Edge, Adobe Acrobat, macOS Preview and phone viewers all ask for the password when opening. No extra software is needed.
Can it remove a password?
No — this tool only adds passwords. If you forget the password nobody can open the file, so write it down.
