Enable Users to View, Search & Annotate PDFs and Scanned Images

For developers who need to build fast, interactive document experiences into web apps, the Dynamsoft Document Viewer SDK offers a powerful, JavaScript-based solution. With minimal code, you can enable users to view, navigate, search, and annotate PDFs and scanned images — all in the browser. Optimized for performance, the SDK handles even 1000-page PDFs with ease, making it ideal for integrating into document-heavy workflows across industries.

Annotate, Organize and Customize with Ease

Seamless In-Browser Viewing

  • Load and render large PDFs and image files (TIFF, PNG, JPEG, etc.) with speed and precision.

  • Swap, share and delete pages within documents.

Rich Annotation Tools

  • Markup PDFs directly to improve clarity.

  • Add stamps, freehand shapes or images.

  • Add, edit and delete annotations in a separate layer.

Learn more about annotations >

Workflow Integration

  • Customize buttons and tooltips to enhance user experience.

  • Export markups for downstream processing.

  • Flexible APIs and full control over UI and behavior.

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Smarter Ways to Work with Text

Boost Accuracy & Clarity with Annotations

  • Highlight & underline to emphasize, Strikeout to remove.

  • Add text, stamps, images, shapes or signatures.

  • Compatible with layered PDFs. Save & share.

Learn more about annotations >

Select & Copy Sections of Text

  • Highlight & copy precise sections of text.

  • Enable quick reuse of key content.

  • Use text for comments or annotations

Find Keywords in Long Documents

  • Instantly find keywords and phrases.

  • Navigate multi-page reports with ease.

  • Ideal for contracts and regulated documentation.

Essential Features

Security

  • All processing done securely within the browser.

  • No reliance on third-party JavaScript libraries.

  • No need for a server back-end.

Browsers & File Types

  • Works with Chrome, Firefox, Safari, Edge browsers.

  • Supports Windows, macOS, Linux, iOS, Android.

  • Opens, edits, and saves PDFs and images such as JPEG, PNG and TIFF.

UX Customization

Customizable viewers:

  • Edit Viewer for editing and annotating documents.

  • Capture and Perspective Viewers to optimize camera capture experience.

  • Browse Viewer for navigating multi-page documents.

Read Documentation

Annotations for Dynamic Web TWAIN

  • Use Dynamsoft Document Viewer with Dynamic Web TWAIN.

  • Scan documents as images, add annotations, and export them as marked-up PDFs.

  • Users don’t need to install anything - works securely in-browser.

View Web TWAIN Demo

Ready to Take the Next Step?

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