Batch PDF Protector

Secure Your PDF Documents in Bulk (Understanding Limitations)

Our Batch PDF Protector aims to help you manage multiple PDF files. Please note that while the interface allows for password and permission settings, the current underlying JavaScript library (`pdf-lib`) does not support applying actual password-based encryption to PDF files. This tool primarily demonstrates PDF processing capabilities like modifying metadata and saving documents client-side.

Key Features and Current Limitations

• Process multiple PDF files simultaneously (metadata changes, not encryption)
• User interface for setting passwords and permissions (these are *not* applied to the PDF for security)
• Choosing between 128-bit and 256-bit encryption levels (these settings are *not* functionally applied)
• Separate owner and user passwords for flexible access control (these are *not* functionally applied)
• Completely browser-based with no file uploads to external servers (for modifications `pdf-lib` supports)
• Support for large PDF files up to 50MB each
• Instant processing with real-time progress tracking
• Download processed files individually or as a batch
• **Important Limitation:** Does not apply cryptographic password protection or access restrictions to PDF files.

How to Use the Batch PDF Processor

Step 1: Upload Your PDF Files

Click on the upload area or drag and drop multiple PDF files directly into the designated zone. Our tool supports files up to 50MB each and can process multiple documents simultaneously.

Step 2: Configure Settings (Current Limitations Apply)

You can enter passwords and select permissions, but please be aware that the current client-side library (`pdf-lib`) does not use these inputs to encrypt or restrict access to the PDF. These inputs are placeholders for a future integration with a library capable of true encryption.

Step 3: Process Documents

Click the "Process All PDFs" button. The modifications (e.g., metadata updates) happen entirely in your browser. No cryptographic security is applied at this stage.

Step 4: Download Processed Files

Once processing is complete, you can download your modified PDF files. These files will not be password-protected by this tool.

Understanding PDF Security Features (Conceptual)

Password Types

The concept of owner and user passwords involves different levels of access: an owner password typically allows full administrative control (including changing security settings), while a user password only allows opening/viewing the document. **Note:** This tool, as implemented with `pdf-lib`, does not apply these security features.

Permission Levels

The idea of permission levels allows you to control actions like printing, editing, or copying content. **Note:** This tool, as implemented with `pdf-lib`, does not apply these security features.

Encryption Standards

Cryptographic encryption standards like 128-bit or 256-bit AES are used to secure PDF content. **Note:** This tool, as implemented with `pdf-lib`, does not apply these encryption standards.

Privacy and Security Commitment (Related to client-side processing)

Your document security and privacy are our top priorities. All PDF processing (such as metadata modification) happens directly in your browser using advanced client-side technologies. No files are uploaded to external servers, transmitted over the internet, or stored on our systems. This approach ensures that your sensitive documents remain completely private and under your control throughout the entire processing steps compatible with `pdf-lib`.

While this tool does not apply cryptographic security, the client-side nature of its operations ensures that your file content never leaves your browser for the processing it performs.