How does PDF Protector guarantee my files are not stolen or logged?

PDF Protector runs 100% within your client browser using WebAssembly and JavaScript. No network requests are made with your file data, making file interception or server-side logging technically impossible.

Can I remove the password later if I know it?

Yes. If you know the password you used to protect the document, you can open the file in Adobe Acrobat or our upcoming PDF Password Remover tool and save an unencrypted copy.

Why is client-side processing faster than cloud converters?

Cloud converters require you to wait while your file uploads over your internet connection, sits in a remote server queue, and downloads again. PDF Protector runs directly on your device's CPU, completing in milliseconds.

Will password-protected PDFs open on any device?

Yes. Our encrypted PDFs adhere strictly to the ISO 32000 standard and open smoothly in Adobe Acrobat Reader, Google Chrome, Microsoft Edge, Safari, iOS Files app, Android PDF viewers, and Preview for macOS.

Help Center

Frequently Asked Questions

Find comprehensive answers about security standards, zero-knowledge privacy, permissions, and device compatibility.

Privacy & Security

Are my confidential PDF files uploaded to any server? ▼

No. Your files are never uploaded to any remote server or third-party cloud. The entire PDF encryption process runs 100% locally in your web browser via JavaScript and WebAssembly.

Is PDF Protector GDPR, HIPAA, and CCPA compliant? ▼

Yes. Because PDF Protector never collects, processes, or transmits your personal data or document contents to any server, there is zero risk of third-party data processing violations. It meets the strictest institutional compliance requirements.

What cryptographic cipher is applied to the PDF? ▼

PDF Protector applies industry-standard Advanced Encryption Standard (AES) encryption. This ensures military-grade security compatible with ISO 32000 PDF standards across all global reader software.

Passwords & Permissions

What is the difference between User and Owner passwords? ▼

The User (Open) Password is required by recipients to open and view the document. The Owner (Permissions) Password gives administrative privileges to modify document restrictions (e.g., re-enabling printing or copying).

Can you recover a PDF if I lose the password? ▼

No. Because we operate with authentic cryptographic zero-knowledge standards and do not maintain any centralized password registry, lost passwords cannot be recovered by anyone. Please save your passwords in a password manager.

Can recipients copy text from my protected PDF? ▼

Not if you disable the "Allow Text & Graphic Copying" option in our tool. When unchecked, compliant PDF readers will disable the copy and extract functions.

Technical & Compatibility

What PDF viewers support our encrypted files? ▼

All standard PDF readers, including Adobe Acrobat, Apple Preview (macOS/iOS), Google Chrome, Microsoft Edge, Mozilla Firefox, Foxit Reader, and PDF Expert.

Is there any file size or usage limit? ▼

PDF Protector is 100% free with unlimited usage. You can process documents up to 100MB per file safely within browser memory.

Have a question not answered here?

Contact Our Team