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PDFTron is now Apryse, learn more here.

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PDFTron is now Apryse, learn more here.

WebViewer: JavaScript PDF Library

WebViewer is a pure client-side JavaScript PDF library to view, annotate and edit documents.

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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.

Get started Guides API docsSamples

Clone a sample project

Clone framework specific sample apps


Clone full sample apps

Digital signing appSearch across multiple documentsStamp barcodesServer-side searchCollaboration sample

See more on our GitHub.


Framework Support

WebViewer is compatible with any JavaScript framework by using a DOM element to place the document viewing component. The following pre-built samples are available for quick integration, but it's easy to setup WebViewer with any framework.

If you don't see your framework in the list then you can check out the framework guide which explains how to integrate WebViewer into any framework.

File Type Support

  • PDF, PDF/A
  • DOCX, XLSX, PPTX (MS Office software or licenses not required)
  • MP4, WEBM, OGG (via WebViewer Video build )

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

Browser Support

BrowserSupported Versions
ChromeAll ✓
FirefoxAll ✓
SafariAll ✓
EdgeAll ✓
Internet Explorer*10+
Android Chrome59+
Mobile Safari11+
*IE's JavaScript engine is slow compared to more modern browsers and this can impact the performance of client only rendering

Additional browsers supported with the optional WebViewer Server and Custom Server setups.

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