Online PDF annotation and signing tool

About This Tool

SmartPDF Annotator provides seamless features to annotate, underline, draw, sign, and apply stamps directly on PDFs in real-time from your browser. Designed for professionals and teams to collaborate faster.

📝 Note Taking
Add comments and descriptions
✍️ Pen Tool
Write or draw with freehand strokes
🔏 Digital Seal
Stamp company or approval seals
🖊️ Signatures
Add or draw your own signature

Key facts

  • Free to use with no account or sign-up required
  • Runs in any modern web browser on desktop and mobile
  • Provided by A2Z Tools (a2z.tools)

How to use it

  1. Upload your PDF or source file
  2. Choose the available options if any
  3. Run the tool
  4. Download the resulting file