🔒 100% Client-Side Privacy
Password Protect & Encrypt PDF Files
Secure confidential financial statements, medical files, and contracts with AES encryption.
Drag & drop your file here
or click to browse from your device
Supports .pdf up to 100MB • Zero server upload
What is Protect PDF?
Add industry-standard AES encryption to your sensitive PDF files. Require a secret password to open the file, and toggle permission restrictions against printing or copying.
How to Use Protect PDF (Step-by-Step)
1
Upload PDF
Select the document you wish to encrypt.
2
Set Password
Enter a strong secret password and choose permission flags.
3
Download Protected PDF
Save your encrypted, protected PDF.
Key Features of Our Online Protect PDF
Strong AES Encryption
Standard encryption ensuring unreadable data without the correct password.
Granular Permissions
Optionally disable text copying, printing, or form modification.
Frequently Asked Questions
No. The file is cryptographically encrypted; without the password, the document cannot be opened in any viewer.