PDF CMap Corrupter

A Java tool for modifying character mappings (CMAP) in PDF documents using Apache PDFBox library. This utility allows batch processing of PDF files with custom character replacement patterns.

Features

• Batch Processing: Process single PDF files or entire directories
• Multiple Font Support:
  • Type0 fonts (composite fonts)
  • Type3 fonts (embedded fonts)
  • TrueType fonts with WinAnsi encoding
  • Type1 fonts with WinAnsi encoding
• Random Character Mapping: Language-independent character replacement
• Flexible Output: Custom output paths and automatic file naming
• Recursive Directory Search: Process nested directory structures

Usage

Process Single File

java -jar pdf-cmap-corrupter.jar document.pdf
java -jar pdf-cmap-corrupter.jar document.pdf modified.pdf