docubend

Password protect a PDF

Choose a password. It is applied to a copy of your file.

How it works

  1. Drop your PDF in.
  2. Choose a password.
  3. Download the protected PDF.

About this tool

Real PDF encryption cannot be done in a browser, so this is one of only two tools here that sends your file to our server. It is encrypted there, handed straight back, and deleted immediately — the file and the password are both gone within the minute, and neither is written to a database or a log. We cannot recover the password for you, so keep it somewhere safe.

Questions

What if I forget the password?

Then the file cannot be opened. We do not keep it and cannot reset it.

What encryption is used?

AES-256, which is what current PDF readers expect.

Why does this one upload my file?

Encrypting a PDF properly means rewriting every stream in it with a cipher, and no browser library does that correctly. We would rather send the file than pretend.

Other tools

Edit a PDFClick any line and type. The text keeps its font and the paragraph rewraps as you go.Annotate a PDFDraw, highlight and add notes on top of the page. The page underneath is left exactly as it was.Sign a PDFDraw your signature or type it, then drag it where it goes.Merge PDF filesDrop in the files you want joined. Drag them into the order you want.Split a PDFPick the pages you want. Take them as one file or as one file each.Compress a PDFChoose how small you need it. You will see the new size before you download.