The PDF Viewer library allows you to extract the text from a page along with the bounds. Text extraction can be done using the isExtractText property and extractTextCompleted event.
Step 1: Follow the steps provided in the link to create simple PDF Viewer sample.
Step 2: The following code snippet explains how to extract the text from a page.
viewer.isExtractText = true;
viewer.extractTextCompleted = args => {
// Extract the Complete text of load document
console.log(args);
console.log(args.documentTextCollection[1]);
// Extract the Text data.
console.log(args.documentTextCollection[1][1].TextData);
// Extract Text in the Page.
console.log(args.documentTextCollection[1][1].PageText);
// Extracts the first text of the PDF document along with its bounds
console.log(args.documentTextCollection[1][1].TextData[0].Bounds);Find the Sample how to Extract Text