React PDF Viewer - Annotations

Review Documents with PDF Annotations

Add highlights, shapes, freehand drawings, free text, stamps, and signatures to PDF documents in the React PDF Viewer. Use annotations to review content, share feedback, and manage document changes more effectively.

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Annotate PDF Documents for Effective Document Review

Enhance document collaboration with highlights, shapes, handwritten markings, text notes, stamps, and signatures. Capture feedback, mark revisions, and track updates within PDF files for an efficient review process.

React PDF Viewer text markup annotations

Review with PDF text markup

Mark selected PDF text with highlighting, underlining, strikethrough, or squiggly annotations to flag important passages. Use text markup when specific phrases require attention, correction, or verification during document review.

React PDF Viewer shape and measurement annotations

Mark and measure PDF content

Draw shape annotations and measurement annotations directly on PDF pages to mark layouts and designs. Use these annotations to provide visual feedback and verify dimensions during document reviews.

React PDF Viewer ink and free-text annotations

Draw and comment on PDFs

Draw freehand sketches with ink annotations and add text annotations to capture ideas and feedback directly on PDF pages. Use ink and free-text annotations when visual context or custom notes are needed beyond traditional markup.

React PDF Viewer sticky notes and comment panel

Add comments with sticky notes

Add sticky note comments to specific PDF locations to keep feedback connected to relevant content. Use comment annotations when review discussions and decisions need to stay linked to exact document locations.

React PDF Viewer stamp and signature annotations

Sign and approve PDF documents

Add approval marks and signatures to PDF documents to show review status and confirm decisions. Use signature and stamp annotations to document approval steps and maintain a clear, detailed approval audit trail.

See Why Developers Love Syncfusion

These real-time stories shows the impact of our PDF Viewer SDK

The best way to showcase our commitment is through the experiences and stories of those who have used our PDF Viewer.

Adrian S

Small-Business

Syncfusion has an amazing react library with a lot of great component, including a fantastic PDF Viewer. It’s the only PDF Viewer that I’ve been able use, hassle free, full fledged, immediately. The PDF Viewer SDK component comes with all the functionality I could wish, fully customizable. When compared to other commercial products, the number of features is amazing and complete. I’ve found all I needed.

Pascal G,

Software Engineer, Small-Business

Syncfusion’s WPF controls. The WPF PDFViewer is best-in-class. It’s the only one with annotations, redaction, and is extremly fast. Syncfusion’s support is great. You get a reply to a ticket between several hours and several days.

Frequently Asked Questions

✅ What annotation types does the React PDF Viewer support?

React PDF Viewer supports text markup, shapes, measurements, ink, free text, sticky notes, stamps, redaction, and handwritten signatures.

✅ Can annotations be protected from edits after review in the React PDF Viewer?

Yes. Annotation lock prevents editing and deletion after review. Permission settings also restrict annotation creation, interaction, printing, and downloading.

✅ Can annotation appearance be customized in the React PDF Viewer?

Yes. Annotation properties such as color, opacity, thickness, and font settings can be customized within the Viewer to match specific review or branding requirements.

✅ Does the React PDF Viewer support annotation import and export?

Yes. The React PDF Viewer supports exporting and importing annotation data in JSON and XFDF formats to preserve review history.

✅ Are React PDF Viewer annotations supported on mobile?

Yes. Annotation tools are supported in mobile devices, including touch-based interactions for drawing, selecting, and editing annotations.

✅ Is there a panel to view and manage all annotations in the React PDF Viewer?

Yes. All annotations in the React PDF Viewer can be accessed through a centralized comment panel, where reviewers can view, reply to, navigate, and manage annotation discussions.

Resources

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Developers around the world trust Syncfusion’s Essential Studio to simplify complex projects and speed up delivery. With a vast library of UI controls, powerful SDKs, and reliable support, Essential Studio helps teams build enterprise-ready applications with confidence.

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