Problem
PDFs are the second most common file type in OneDrive for Business after Office files; however, users could previously only view PDFs, with no editing capabilities in OneDrive or SharePoint.
Solution
To address frequent requests for quick signing and annotation, I designed a comprehensive end-to-end experience. The solution included custom tool cursors, interaction states, color and line weight controls, editable text boxes, and resizing functionality. After conducting usability testing and iterating based on feedback, the design was optimized for intuitiveness and ease of use. Below are few key frames showcasing the final design.