During March 2025, this developer enhanced the reliability of the PDFMathTranslate repository by refactoring the temporary file cleanup process in the pdf2zh high-level module. Using Python and leveraging Path objects, they introduced robust error handling to ensure that temporary files are consistently and safely removed after processing. This technical approach addressed cleanup-related failures that previously disrupted automated PDF-to-Chinese translation workflows. Their work focused on improving file management and error handling, resulting in reduced maintenance overhead and fewer workflow interruptions. The depth of the solution demonstrates a thoughtful approach to code quality and operational stability within the translation pipeline.