Developed a dynamic PDF generation system using the Factory Pattern to instantiate different converter types based on input parameters. Implemented Template Method Pattern through abstract base classes that define the conversion workflow while allowing specialized implementations. Applied Strategy Pattern for handling different data types and conditional rendering logic.

Built complex PDF documents using the iText library with custom font handling and fallback mechanisms. Created table layouts with dynamic cell spanning, conditional formatting, and color-coded sections. Implemented custom page event handlers for dynamic headers and footers with automated page numbering and institutional branding.