Month June 2025

Debugging Range Check Errors in Delphi PDF Libraries

When working with PDF manipulation libraries in Delphi, range check errors can be particularly frustrating because they often occur deep within complex document structures. These errors are especially challenging because they may appear intermittently, depending on the specific PDF structure…

Debugging PDF Page Order Issues: A Real Case Study

PDF manipulation can be tricky, especially when dealing with page ordering. Recently, We encountered a fascinating debugging session that revealed some important insights about PDF document structure and page indexing. This case study demonstrates how a seemingly simple “off-by-one” error…