PDF Markup Tool

This tool provides a web-based workflow to annotate PDFs without installing software. It accepts a PDF upload, applies non-destructive overlays such as highlights, underlines, strikethroughs, notes, shapes, and stamps, and exports a new PDF containing the annotations. It is designed for students, educators, legal and business reviewers who need rapid, shareable feedback on documents. The underlying concept is an overlay layer that maps to each page and renders annotations without altering the original text. The final file remains compatible with standard PDF viewers and printers, preserving layout fidelity while signaling review notes clearly to recipients. The platform emphasizes accessibility of review cycles, audit trails through annotation counts, and straightforward export to deliverable PDFs. It differentiates itself by offering a no-install, cross-device markup solution with reliable preservation of visual cues during export, useful in legal reviews, class feedback loops, and policy editing workflows.