Page History

// Get page count example

const docViewer = eventSource.window.getDocViewer('MyDocViewer');

docViewer.dispatchMethodCall('getPageCount')
     .then((numPages) => {
         console.log(numPages);
     });

// Opening several documents in different tabs

docViewer.dispatchMethodCall('openSpecifiedDocuments'. [{documentId: 'myfile.pdf', displayName: 'My File'}])
     .then((numPages) => {
         console.log(numPages);
     });