Password Protect PDF Files Online
Add strong password encryption to secure confidential PDF documents directly on your device. 100% Free & In-Browser Private.
Drag & Drop your files here
Supports PDF, JPG, PNG, WEBP, and DOCX files. 100% private in-browser processing.
Strong Document Password
Set custom user passwords to prevent unauthorized users from viewing confidential PDF records.
In-Browser Encryption
Encryption routines execute directly inside your browser. No plain text or password values leave your computer.
Secure Email Attachments
Protect sensitive tax documents, contracts, or personal identity PDFs before emailing or sharing online.
How to Encrypt and Password Protect PDF Files
Securing private PDF files with password protection ensures that only authorized recipients possessing the password can open and view the document:
- Upload Document: Drag and drop your PDF file into the upload box.
- Set Secret Password: Enter a strong password into the password field.
- Click Protect PDF: The browser applies PDF encryption wrapper to your file locally.
- Download Secured File: Save your password-protected PDF document.
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Every tool is 100% free and accessible without registration. Clear badges state exactly where processing happens.
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Frequently Asked Questions
Everything you need to know about merging PDFs, file security, and conversions.