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PDF Security Checker

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Drop your PDF here to check its security

Verify your files are properly protected before sharing

🔒 By using this tool, you confirm you own or have permission to check this file.
Your file is analyzed locally and never uploaded.

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Security Report

File -
Protection Status -
Security Level -
Encryption Strength -
✅
-
-

Why check your PDF's security?
Before sharing sensitive documents, it's important to verify they're properly protected. This tool helps you confirm your own files have strong encryption applied, so you can share with confidence.

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How to Check Your PDF's Security

  1. Select or drag-and-drop your PDF file.
  2. The tool will instantly analyze your file's protection.
  3. Review the security report to see your encryption level.
  4. If needed, use our Password Protect tool to add stronger security.

About This Tool

The PDF Security Checker helps you verify that your own PDF documents are properly protected before you share them. Whether you're sending contracts, financial documents, or personal files, it's important to know your sensitive information is secure.

This tool checks what type of encryption (if any) is applied to your PDF. Strong encryption like AES-256 ensures your document's contents are scrambled and unreadable without the correct password. Weaker or missing encryption may leave your data exposed.

This tool does not remove passwords or attempt to crack or bypass PDF security. It only reads the document’s encryption settings to help you evaluate your own files.

All analysis happens directly in your browser — your files are never uploaded anywhere. This makes it safe to check even your most sensitive documents.

FAQ

What security level should I look for?
AES-256 is the strongest protection available and is recommended for sensitive documents. AES-128 is also good for most purposes. If your file shows "Not Protected" or uses older encryption, consider adding stronger protection.

Is this tool legal to use?
Yes, when used on files you own or have permission to check. This tool is designed to help you verify the security of your own documents before sharing them.

Is my file uploaded anywhere?
No. All analysis happens entirely in your browser using JavaScript. Your PDF never leaves your device, making it safe for confidential documents.

What if my PDF shows "Not Protected"?
That means anyone with the file can open and read it without a password. If the document contains sensitive information, you should add password protection using our Password Protect PDF tool.

Why does encryption matter?
Without encryption, PDF files can be opened by anyone who has access to the file. Encryption scrambles the content so that only someone with the correct password can read it. This is especially important for financial documents, contracts, medical records, and personal information.

Does this work on mobile devices?
Yes, this tool works on all modern browsers including Chrome, Safari, Firefox, and Edge on both desktop and mobile devices.