PDF Annotation Tool

100% Private
100% Local
No Signups
How It Works
1. Upload PDF

Select any PDF file. It loads instantly in your browser.

2. Annotate

Use highlight or underline tools. Choose colors and draw on the document.

3. Save

Download your annotated PDF. Annotations are embedded permanently.

Related Articles
PDF Editor: Add Text, Headers & Signatures Offline

Complete guide to editing PDFs without uploading to the cloud.

Tutorial
Editing
Advanced PDF Features: Batch Redaction & Forms

Master advanced PDF editing with forms and redaction tools.

Advanced
Features
Did this tool work for you?

Your feedback helps us improve. Approved comments appear on this page after moderation.

Overall rating
Did it meet your expectations?

Focus on the product experience, not document contents.

Do not include personal data or confidential document content.