COVRIXA PDF LAB
Encrypt Your
Encrypt Your
PDF Files
Add strong AES-256 encryption to your PDF files or remove existing passwords. Fully browser-based — your files never leave your device.
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Drag and drop a PDF file or select one
Upload a PDF to add password protection
Why Covrixa?
No registration
No data sent to server
Mobile friendly
Completely free
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Frequently Asked Questions
Is PDF encryption secure?
Yes. This tool uses the AES-256 encryption standard and all operations happen in your browser. Your PDF file is never sent to any server — it is processed entirely on your device. This ensures your sensitive documents are never shared with third parties.
Can I remove a password from an encrypted PDF?
Yes, you can remove the password from any PDF whose password you know. Switch to the "Remove Password" tab, upload your file, and enter the existing password. If the password is correct, your new password-free PDF will be downloaded automatically.
What encryption algorithm is used?
The tool uses AES-256 (Advanced Encryption Standard) encryption in PDF 2.0 standard. This is one of the strongest encryption methods available today and is approved by the U.S. government. AES-256 is extremely resistant to brute-force attacks.
Can I encrypt large PDF files?
Yes, but processing time depends on file size. Since the tool works in your browser, large files (50MB+) may process slower depending on your device's memory and CPU. For best performance, we recommend using files under 100MB.
What is the difference between user password and owner password?
The user password is required to open the PDF. The owner password controls permissions like printing, editing, or copying on the PDF. You can set both. For most use cases, the user password alone is sufficient.
How to Encrypt PDF Files
What is Covrixa PDF Encrypt?
Covrixa PDF Encrypt is a browser-based security tool that lets you add strong AES-256 encryption to your PDF files or remove existing passwords. All operations happen on your device — your files are never sent to any server.
Steps to Encrypt a PDF
- Upload your PDF file — Click the Select File button or drag and drop your PDF.
- Enter your password — Fill in the user password (required) and owner password (optional) fields.
- Click Encrypt — Your PDF is automatically encrypted and download begins.
- Store it securely — Save your encrypted PDF in a safe place and do not forget your password.
Steps to Remove a PDF Password
- Switch to the "Remove Password" tab — Select Remove Password from the tabs above.
- Upload your PDF file — Select the encrypted PDF.
- Enter the existing password — Type the password required to open the PDF.
- Click Remove Password — Your password-free PDF is downloaded automatically.
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Prepared by Covrixa Team · Last updated: June 2026
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PDF Encrypt · Free Tool · Covrixa