Annotate any PDF
right in your browser.
Highlight, draw, add sticky notes, shapes, and more â no software to install. Works instantly for guests, or sign up free to save your files.
No sign-up required for guests. Files are not saved without an account.
Everything you need to annotate PDFs
Pen & Highlighter
Freehand drawing with adjustable color and stroke width. Highlight text passages with a semi-transparent yellow marker.
Shapes & Arrows
Rectangles, circles, arrows, underlines â all resizable and rotatable with precise handles.
Sticky Notes
Add draggable, editable notes anywhere on the page, just like physical sticky notes.
Undo / Redo
60-step undo history per page so you never lose work accidentally.
Multi-page Support
Navigate any PDF with smooth scrolling, zoom, and a fit-to-width view.
Save & Download
Registered users can save annotations and download the annotated PDF anytime.
How it works
Upload your PDF
Drag and drop or click to upload any PDF file up to 20 MB.
Annotate instantly
Use any tool to highlight, draw, or comment on your document.
Save or download
Download the annotated PDF, or sign up to save it for later.
Ready to annotate?
No account needed to get started. Upload a PDF and start annotating in seconds.
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