Use Protection Appropriately
Protect documents when access control is appropriate for the information they contain.
Free Online Security Tools
Free Security Tools Online
Protect, unlock and watermark PDF documents with simple browser-based security tools. Choose the tool you need and get started directly from your browser.
SECURITY TOOLKIT
Choose a Security Tool
Select the PDF security tool you need. Each tool is designed for a specific document protection task and can be used directly from your browser.
ABOUT SECURITY TOOLS
What Can You Do With These Security Tools?
PDF documents are often used for reports, applications, business documents and files that need to be shared in a consistent format. In some situations, you may also need to protect a PDF, remove protection from a file you are authorized to access, or add a visible watermark.
ConvertNova provides separate browser-based tools for common PDF security tasks. You can protect supported PDF documents with a password, unlock supported documents when you have the necessary permission, or add text and image watermarks.
Keeping each operation as a separate tool makes it easier to select the exact PDF security task you need without searching through unrelated document tools.
QUICK GUIDE
Which Security Tool Should You Use?
Choose the tool according to the PDF security task you want to complete.
01
Unlock a PDF
Use PDF Unlocker when you need to remove protection from a supported PDF that you are authorized to access.
04
Identify a document
A visible watermark can help indicate ownership, document status, branding or other information on a PDF.
05
Control document access
Password protection can provide an additional access-control layer for supported PDF documents.
06
Prepare a protected PDF
Review the document first, then choose the appropriate protection or watermark operation before sharing the final file.
SIMPLE WORKFLOW
How to Use a Security Tool
Complete a PDF security task in a few straightforward steps.
1
Choose a tool
Select Unlocker, Protector or Watermark based on your task.
2
Upload your PDF
Add the supported PDF document required by the selected tool.
3
Apply the security operation
Follow the selected tool's instructions and start processing.
4
Download the result
Review the processed PDF and download the resulting document.
SECURITY TIPS
Tips for Working With Protected PDFs
A few simple practices can help you work more safely and effectively with PDF documents.
Keep Passwords Secure
Use a password you can securely manage and avoid sharing document passwords unnecessarily.
Unlock Only Authorized Files
Only remove protection from documents when you have the necessary permission to access or modify them.
Review Watermarks
Check the watermark position, readability and appearance before sharing the final PDF.
Secure Processing
Your files are automatically deleted after processing.
Fast Processing
Security tools are designed to process supported PDF files quickly.
Mobile Friendly
Works across desktop, tablet and mobile devices.