Annotate PDF

Annotate PDF — Free Online Tool

Highlight text, add sticky notes, draw freehand, and comment on PDFs. Great for reviewing documents, giving feedback, or studying materials.

What You Can Do

• Highlight and draw on PDF pages.
• Add review notes and visual comments.
• Export the annotated document.

Why Use Annotate PDF?

Review drafts, mark study material, and provide feedback on reports or proofs.

How to Use This Tool

1. Step 1. Upload your file using the drag-and-drop area above.
2. Step 2. Adjust any settings, then start processing.
3. Step 3. Download your result instantly — free, with no watermarks.

Best Use Cases

Review drafts, mark study material, and provide feedback on reports or proofs.

File Privacy and Processing

This tool processes your file locally in your browser. The source document is not uploaded to PDFHill for processing, although your browser may download the tool libraries needed to perform the task. Read our file safety overview.

Frequently Asked Questions

Is this tool free?

Yes. PDFHill tools are free to use and PDFHill does not add a watermark to your downloaded file.

Do I need an account?

No sign-up is required for most PDFHill tools.

Will my original file be changed?

No. PDFHill creates a new download. Your original file stays as it was on your device.

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