Annotate PDF — Free Online Tool | OmniPDFSuite

Add professional annotations, notes, and markup to PDF documents for review and collaboration.

How to Use Annotate PDF

1. Step 1: Upload the PDF to annotate
2. Step 2: Select annotation tool from the toolbar
3. Step 3: Click or draw on the document
4. Step 4: Save and download the annotated PDF

Key Benefits & Features

• Multiple annotation types
• Color coding
• Threaded replies
• Author identification
• Export annotation summary

Frequently Asked Questions

What annotation types are available?

Sticky notes, text highlights, underlines, strikethroughs, freehand drawing, shapes, and text callouts.

Can others see my annotations?

Yes, annotations are saved in the PDF and visible to anyone who opens it. They can be hidden or deleted by editors.

Can I reply to annotations?

Yes, create threaded comment replies on any annotation for collaborative review.

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