Munish Sharma focused on stabilizing the PDF download functionality in the hmcts/em-media-viewer repository, addressing inconsistent behavior in the PdfJsWrapper component. He investigated the integration between downloadFile and the downloadManager API, evaluating both the download and downloadUrl paths to determine the most reliable approach. Using TypeScript and front-end development skills, Munish implemented targeted unit test adjustments to prevent regressions and reverted API changes as needed to maintain system stability during ongoing evaluation. His work improved the reliability of PDF downloads, established documentation for API decisions, and laid the groundwork for consistent behavior across different environments, reflecting careful, incremental engineering.