Annotate PDF Online
Add text, highlights, drawings, shapes and arrows to PDF pages privately in your browser.
The interactive tool loads in your browser.
How to annotate a PDF with text, highlights and drawings
Add notes, freehand drawings, highlights, rectangles, circles and arrows directly to a PDF in your browser without sending the document to a processing server.
- Choose the PDF you want to annotate.
- Select Text, Pen, Highlight, Rectangle, Circle or Arrow.
- Place or draw the annotation directly on the PDF page.
- Move, resize or delete annotations until the page looks right.
- Use the page controls to annotate additional pages.
- Create and download the annotated PDF, then reopen it to check the final placement.
A practical example
For a contract that needs review notes, highlight an important sentence, add an arrow beside a clause and place a short text note next to it. The downloaded PDF keeps those annotations visibly applied to the page.
Common questions
Are my PDF files uploaded to a server?
No document-processing upload is required. Annotation is performed locally in your browser.
Can I annotate scanned PDFs?
Yes. You can add text, drawings, highlights and shapes over scanned PDF pages as long as the document can be opened in your browser.
Will the annotations appear on mobile?
The annotations are applied directly to the downloaded PDF page instead of relying on viewer-specific interactive form controls, which improves consistency across desktop and mobile PDF viewers.
Can I annotate multiple pages?
Yes. Move between pages with the page controls and add different annotations to each page.
What tools are available?
The editor supports text, freehand pen drawing, highlighting, rectangles, circles and arrows.