Annotate PDFs with UPDF to Collaborate on a Better Scale

Effortlessly annotate PDF documents with an array of convenient PDF markup tools and collaborate with other users to review your PDFs thoroughly.

Annotate PDFs with Ease

Add Comments to PDF

Make comments in PDF documents, highlight, underline, or strikeout text, add text boxes and sticky notes.

Add Stamps and Stickers to PDF

Add up to 100+ different kinds of stamps and stickers to your PDF. You can even create a custom stamp to any section of the document.

Add Signatures to PDF

Draw a handwritten signature or type-in an electronic signature. Signatures can be easily moved to any section of the document.

Insert Shapes in PDF

Insert various shapes into your PDF, such as rectangles, ovals, arrows, and lines. Control the properties of these shapes by changing their style, thickness, border and fill colors, and opacity.

Share Annotated PDF via a Link

UPDF provides users with the opportunity to share their annotated PDF via a link after the completion of the requested task. Users receiving the PDF document through the link can view, copy, download, or print the PDF without downloading any PDF software, ensuring the best environment for coherent collaboration.