Doconut Annotation Plugin transforms your document viewer into a fully interactive workspace.
It allows users to highlight, draw, comment, and collaborate directly on top of any document — all within your ASP.NET, MVC, Core, or Blazor application.

NET Doconut Annotation Plugin

No external tools. No file downloads. Just seamless in-browser annotation for every supported format — Word, Excel, PowerPoint, PDF, CAD, and Images.

✨ Key Features

  • 🖋 Text Highlighting — Mark and color key parts of text for clarity.
  • 🧭 Freehand Drawing — Use pens, lines, and shapes to sketch or underline.
  • 💬 Sticky Notes & Comments — Add context and collaborate in real time.
  • 🔒 Secure Storage — Save annotations server-side with complete access control.
  • ♻️ Persistent Layering — Annotations stay linked to the document even after reload or export.
  • 🧱 Multiple Annotation Types — Rectangle, circle, arrow, line, pen, and more.

⚙️ How It Works

The Annotation Plugin extends the Doconut Viewer interface, adding an intuitive toolbar that enables users to interact visually with the content.
All annotations are saved in an XML-based structure on the server, keeping the original document intact.

Key benefits:

  • Zero client-side installation.
  • Full synchronization with the document rendering engine.
  • Compatible with server-side workflows and enterprise security policies.

💡 Perfect for

  • Legal and compliance portals where document markup is essential.
  • Engineering or design teams needing visual review tools.
  • Educational and e-learning systems enabling teacher-student feedback.
  • Corporate document management systems requiring revision tracking.

🌐 Try It Yourself

Explore interactive annotations live at doconut.app.
Test how your users can draw, comment, and collaborate — directly in the browser.

🧩 Integrate with Other Doconut Plugins

The Annotation Plugin works seamlessly with:

  • Search / OCR Plugin — highlight search results for easy navigation.
  • Editor Plugin (Coming Soon) — edit and annotate within the same interface.

🚀 Ready to Add Annotations to Your App?

📦 Download the SDK: doconut.com/download
📖 View Documentation: doconut.com/docs

Empower your users to communicate visually and collaborate smarter — with Doconut Annotation Plugin.