Drop files here
Protect PDF
Add password protection to a PDF file
Choose a password
for file «»
Password strength: Weak Fair Good Strong Very strong
Protected with password encryption
How do I protect a PDF with a password?
Upload a PDF file from your device, enter and confirm a password, then process the document. When it is ready, download the protected PDF or save it to Google Drive.
Password protection for your PDF
The tool encrypts your PDF to help prevent unauthorised access. The level of protection also depends on the strength and confidentiality of the password you choose.
How to create a strong password
Use a long, unique password that combines uppercase and lowercase letters, numbers and symbols. Avoid names, birthdays, common words and simple sequences.
Works on common devices and operating systems
You can use this tool on Windows, macOS, Linux, smartphones and tablets with a modern web browser.
Files removed within 24 hours
Uploaded files and processed results are stored temporarily and automatically removed from the server within 24 hours.
Online processing
PDF password protection is applied on the server, so you do not need to install additional software on your device.