ArchitectPDF

Protect PDF

Lock sensitive PDFs with a password and 256-bit encryption.

lock

Drop your PDF here

or click to browse your files

Max upload size: 200 MB.

Security settings

Password

Confirm password

We use AES 256-bit encryption to secure your document.

How it works

1) Upload your PDF. 2) Set and confirm a password. 3) Click Protect PDF to download the secured file.

Drag and drop your file or browse from your device.

Enter a password that will be required to open the document.

We encrypt your PDF and return a protected file instantly.

Learn more: Read the complete guide →