When using PDFBox to handle PDF files in Java, you are faced with specific PDF messages, like “Operator cm has too few operands”, “Missing XObject”, and font related problems.
Instead of using your IDE to debug each document page as objects and properties in the memory, you can use PDBox Command-Line Tools and check the same values graphically. This application will take an existing PDF document and allows to analyze and inspect the internal structure.
Apache PDFBox 2.0
- Download pdfbox-app-2.0.30.jar
- Run
java -jar pdfbox-app-2.0.30.jar PDFDebugger [inputfile]1
Apache PDFBox 3.0
- Download pdfbox-app-3.0.1.jar
- Run
java -jar pdfbox-app-3.0.1.jar debug [inputfile]2