PDF.js Express Plusplay_arrow

Professional PDF.js Viewing & Annotations - Try for free

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Common use cases

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Open a document

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Save a document

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Viewer

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UI Customization

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Annotations

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Forms

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Advanced Capabilities

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PDF.js Express REST API

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Migration Guides

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Open a document from Blob

The following features are available in:

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PDF.js Express Viewer

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PDF.js Express Viewer is a free viewer with limited capabilities compared to PDF.js Express Plus

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PDF.js Express Plus

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PDF.js Express Plus is a commercial PDF SDK for viewing, annotating, signing, form filling and more

If your document is already in Blob format you can pass the Blob object directly to loadDocument function.

WebViewer(...)
  .then(instance => {
    instance.loadDocument(myBlob, { filename: 'myfile.pdf' });

    const { docViewer } = instance;
    docViewer.on('documentLoaded', () => {
      // perform document operations
    });
  });
WebViewer(...)
  .then(instance => {
    instance.UI.loadDocument(myBlob, { filename: 'myfile.pdf' });

    const { documentViewer } = instance.Core;
    documentViewer.addEventListener('documentLoaded', () => {
      // perform document operations
    });
  });