Blazor PDF Library

WebViewer is a pure client-side JavaScript library to view, annotate and edit documents. It is compatible with any JavaScript framework, including SharePoint, by using a DOM element to place the document viewing component. WebViewer has a pre-built SharePoint sample specifically designed for integrating into a SharePoint project.

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Apryse's fully supported WebViewer is trusted by thousands of innovative startups, governments, and Fortune 500 businesses (see customers). Apryse technology is built from the ground up and is not dependent on any external third-party open-source software.

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Customizable

• UI source code is included (built in React)

• Create custom annotations

• Change annotation appearance

• Customize annotation behaviour

• Internationalization through JSON language files

• Rich set of APIs for more advanced customization

File Type Support

• All versions of PDF and PDF/A

• DOC, DOCX, XLS, XLSX, PPT, PPTX (MS Office software or licenses not required)

• JPG, PNG, JFIF, TIF, TIFF

• MP4, WEBM, OGG (via WebViewer Video build )

• MP3, WAV, OGG, FLAC (via WebViewer Video build )

• And many more

Additional formats available with the optional WebViewer Server and Custom Server setups.

Browser Support

WebViewer supports the last 3 major versions of each browser, in line with industry standard. This keeps compatibility predictable without requiring ongoing maintenance of this page.

Browser	Client only	WebViewer Server	Custom server
Chrome	✓	✓	✓
Firefox	✓	✓	✓
Safari	✓	✓	✓
Edge	✓	✓	✓
Android Chrome	✓	✓	✓

What "last 3 major versions" means: As browsers release new versions, support automatically shifts forward. This matches the policy used by most major platforms and frameworks — no manual updates to this page are required.

Changed in WebViewer version 12.0: We previously listed specific minimum version numbers per browser. That table has been replaced with the last-3-versions policy above. If you were relying on an older browser version, please review your compatibility requirements.

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