Annotate PDF
Add annotations, highlights, and comments to PDF documents online.
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Annotate PDF lets you highlight text, add comments, and draw shapes directly on PDF documents without downloading software. Perfect for reviewing documents, marking up assignments, or collaborating on PDFs online.
How it works
- 1Upload your PDF file to the tool
- 2Select highlighting, comments, or drawing tools
- 3Mark up your document as needed
- 4Save your annotated PDF to your device
Who uses this tool
- ✓Students reviewing and marking up lecture notes and assignments
- ✓Teachers grading papers and providing written feedback
- ✓Professionals reviewing contracts and business documents
- ✓Teams collaborating on document edits and approvals
- ✓Researchers highlighting key passages in research papers
Frequently Asked Questions
How do I use Annotate PDF?
Upload your PDF, select an annotation tool from the toolbar (highlight, comment, draw, etc.), apply it to the document, then download.
Is Annotate PDF free?
Yes, Annotate PDF on ToolPix is 100% free with no signup or installation required.
Is my data safe?
All processing happens in your browser, your data never leaves your device.
What annotation tools are available?
Highlight, underline, strikethrough, freehand draw, text comments, arrows, rectangles, and sticky notes.
Can I share annotated PDFs?
Download the annotated PDF and share it normally. Annotations are embedded in the file so anyone can view them.
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