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Extract pageskeyboard_arrow_down

Extracting pages from PDF using JavaScript

If the user only wants to download part of a document, the extractPages function can be used to download specific pages. For example:

  .then(instance => {
    const { docViewer, annotManager } = instance;

    docViewer.on('documentLoaded', async () => {
      const doc = docViewer.getDocument();
      const pagesToExtract = [2, 3];

      // only include annotations on the pages to extract
      const annotList = annotManager.getAnnotationsList().filter(annot => pagesToExtract.indexOf(annot.PageNumber) > -1);
      const xfdfString = await annotManager.exportAnnotations({ annotList });
      const data = await doc.extractPages(pagesToExtract, xfdfString);
      const arr = new Uint8Array(data);

      //optionally save the blob to a file or upload to a server
      const blob = new Blob([arr], { type: 'application/pdf' });

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