Add strong AES-256 password protection to a PDF in seconds — control who can open your document.
Drop your file here
or click to browse · PDF only · max 25 MB
No software to install. Works in any browser on any device.
Industry-standard strong encryption protects your document from being opened without the password.
Optionally set a separate full-permissions owner password, distinct from the password needed just to open the file.
No installation, no desktop software — protect your PDF directly in the browser.
Files and passwords are processed on our server and never shared. Anonymous uploads are deleted immediately after processing.
Try it live in the widget above, or sign up for higher limits and processing history.
Drag and drop or click to upload any PDF up to 25 MB.
Choose a password (4+ characters), and optionally a separate owner password.
Download your PDF — it now requires the password to open.
AES-256, a strong, industry-standard encryption algorithm supported by virtually every modern PDF reader.
A separate password with full permissions (printing, editing, etc.) — if you don't set one, it defaults to the same password.
No — your chosen password is used only to encrypt the file and is never saved on our servers.
No — protect PDFs for free with no signup. Create a free account for higher daily limits and processing history.
Yes. Files are processed on our servers and never shared. Anonymous uploads are deleted immediately after your download.