Security

Protect PDF

Set a password so only people you trust can open the document. Encrypted with AES-256, the same standard used by banks.

🔒 Privacy first🗑 Files auto-deleted⚡ Fast🚫 No sign-up
Drop a PDF here or tap to browseUp to 50 MB per file

🔒 Files are processed securely and automatically removed after processing. We never store your documents.

More PDF tools

Merge PDFCombine multiple PDFs into one document, in the order you choose.Split PDFExtract pages or split a PDF into separate single-page files.Compress PDFReduce PDF file size while keeping the best possible quality.Rotate PDFRotate all pages or selected pages by 90°, 180° or 270°.Organise PDFReorder or delete pages visually, then download the new PDF.Unlock PDFRemove a password from a PDF you own and have the password for.

How to Protect PDF

  1. Upload the PDF you want to secure.
  2. Choose a password. Anyone opening the file will need it.
  3. Download the encrypted PDF and share the password separately.

What 256-bit AES actually protects

The document is encrypted, not merely marked as private. Without the password the contents cannot be read, and there is no way to recover it by inspecting the file. That is real protection - and it is also why a forgotten password means a permanently unreadable document.

Send the password through a different channel

Emailing an encrypted PDF and its password in the same message undoes the encryption entirely, because anyone reading that inbox has both halves. Send the file one way and the password another - a message, a call, anything that is not the same thread.

Frequently asked questions

256-bit AES, the standard modern PDF readers expect.