During February 2026, Window59 developed a new Bates Stamping feature for the Stirling-Tools/Stirling-PDF repository, enabling optional zero-padding for page numbers to support fixed-width stamping in legal documents. This work involved updating both the API request handling and the frontend interface using Java and TypeScript, allowing users to select and apply the zero-padding format. The implementation addressed document consistency and regulatory requirements by ensuring uniform page numbering. Window59 validated the changes through thorough self-review and local testing, preparing the feature for integration in the next release cycle. The work demonstrated depth in API development and front end engineering practices.