Add a password to your PDF and optionally restrict printing, copying, and editing.
🔒 Files are processed securely, kept only temporarily, and deleted automatically.
PDFLines adds AES-256 password protection to your PDF so only people with the password can open it.
You can request restrictions on printing, copying text, and editing, but PDF permission flags are advisory and some readers may ignore them.
Your file is transmitted over HTTPS and deleted after the download window. The password is kept only for the temporary job lifecycle, encrypted if written to Redis, never logged, and removed when the job finishes or expires.
Privacy note: Files are uploaded to PDFLines only for the requested job, kept only as needed to complete processing and make the result temporarily available, then deleted automatically.
It works with modern readers that support AES-256. Permission restrictions are advisory, so some readers may ignore them.
Yes. Use the Unlock PDF tool with the same password.
Have questions? See our full FAQ.
