loadPageText of docviewer instance is not found

Technical Support
#1

  • We are not able to find below two methods (loadPageText & getTextPosition) in the docviewer object, same things are
    working in the pdftron.

  • Kindly suggest what we need to do the changes so, we can highlight all the search words in the pdf.

  • We are using “@pdftron/pdfjs-express”: “^7.2.2” as node-modules.

     docViewer.on('documentLoaded', async () => {
          const doc = docViewer.getDocument();
          console.log(doc);
          var serachArr = ['PDF', 'SDK', 'interest'];
          var searchTerm = '';
          var finalQuads = [];
          const pageNumber = 2;
          async function test() {
              for (let i = 0; i < serachArr.length; i++) {
                  console.log('Before await for ', serachArr[i]);
                  let result = await Promise.resolve(serachArr[i]);
                  console.log('After await. Value is ', result);
                  searchTerm = serachArr[i];
                  const pageText = await doc.loadPageText(pageNumber);
             
                  let startIndex = 0;
                  let endIndex = 0;
                  if (pageText != undefined) {
                      while (startIndex > -1) {
                          startIndex = pageText.indexOf(searchTerm, endIndex);
                          endIndex = startIndex + searchTerm.length;
                          const quads = await doc.getTextPosition(pageNumber, startIndex, endIndex);
                          quads.map((data) => {
                              if (data.x1 != undefined) {
                                  finalQuads.push(data);
                              }
                          })
                      }
                  }
                  highlight.PageNumber = pageNumber;
                  highlight.StrokeColor = new Annotations.Color(255, 255, 0);
                  console.log("searchTerm", searchTerm);
                  console.log("final === ", finalQuads);
              }
          }

          test().then(_ => {
              highlight.Quads = finalQuads;
              console.log(finalQuads[0]);
              annotManager.addAnnotation(highlight);
              annotManager.drawAnnotations(highlight.PageNumber);
              console.log('After test() resolved')
          });
          console.log('After calling test');
      })