PDF Annotator

PDF Annotator Online

Use our free online PDF Annotator to add comments, highlights, shapes, and drawings directly onto your PDF files. Perfect for reviewing, collaborating, or providing feedback without needing to install any software.

What is PDF Annotation?

PDF annotation is the process of adding extra content—such as notes, highlights, text, and drawings—on top of a PDF without changing the original content. These additions help communicate ideas, mark important sections, or clarify information.

Why Annotate a PDF?

• Collaborate Efficiently: Share feedback on documents in a visual and contextual way.
• Highlight Key Information: Draw attention to specific words or sections.
• Make Notes: Add side comments or suggestions directly in the document.
• Draw and Mark Up: Use drawing tools to underline, encircle, or sketch diagrams.

How to Annotate a PDF Online

1. Upload your PDF file using the upload button or drag-and-drop area.
2. Choose your annotation tools: highlight, comment, draw, or insert shapes.
3. Apply annotations to the desired areas in the document.
4. Download your annotated PDF with all changes saved.

Features of Our PDF Annotator

• Multiple Annotation Tools: Add text, highlight, underline, draw, and insert shapes.
• Easy to Use: Intuitive interface for all user levels.
• Cloud-Based: No software installation required.
• Privacy-Focused: Your files are automatically deleted after processing.

Annotation vs. Editing

Annotation adds visible layers on top of the document (e.g., comments or highlights), while editing modifies the actual content. Annotation is safer for review purposes without altering the original material.

Conclusion

Whether you're reviewing a report, collaborating on a project, or just organizing your thoughts, our online PDF Annotator makes it simple to mark up any document—right in your browser.