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Add Text Annotation
🖋️ Annotate PDF Tool
The Annotate PDF Tool empowers you to highlight, comment, underline, draw, and sign your PDF files effortlessly — all from your browser. Perfect for students, educators, designers, and professionals who need to collaborate or review documents in real time. This tool ensures smooth annotation without losing quality, and everything happens securely offline.
Highlight & Underline
Easily emphasize key points or underline important sections. Choose from multiple colors and opacity levels for perfect contrast.
Add Comments
Insert sticky notes or margin comments to communicate feedback clearly. Perfect for document reviews and collaborations.
Freehand Drawing
Draw shapes, arrows, or doodles freely to illustrate ideas or highlight areas of concern directly on the PDF.
Digital Signatures
Add your signature using your mouse or touchscreen for official document approvals — safe, simple, and secure.
Layered Editing
Every annotation is placed in a separate layer — allowing easy adjustments, hiding, or removing annotations anytime.
Private & Secure
All annotations are processed locally — ensuring your PDFs never leave your system. 100% safe and private.
⚙️ How to Use the Annotate PDF Tool
- Upload your PDF or drag it into the workspace.
- Select an annotation tool — highlight, comment, draw, or sign.
- Click and drag on the page to mark areas or insert notes.
- Use the color palette or thickness slider to customize annotations.
- Preview and edit layers before saving your final annotated PDF.
💡 Tip: You can export a clean version (without annotations) or retain notes for review copies.