how to know user edited the document manually.

Technical Support
1

Product: @pdftron/webviewer

Product Version:^11.7.1

How can we track whether a user has made any changes to a document loaded in the viewer? If the document is edited manually by the user, I need to save those changes.

In this case, the document may already have been edited previously, or I might add annotations programmatically. These should not be considered manual updates. I only want to detect and save changes when the user has directly modified the document.

3

Hello Lokesh,

Thank you for contacting WebViewer Forums.

There are several ways to keep track of document changes depending on your use-case. Below are a few examples and documentation links that go into more detail

  1. Importing/exporting XFDF annotation data: Import & Export Annotations with JavaScript | Apryse documentation
  2. Event listener annotationChanged: Annotation Events in JavaScript PDF Viewer | Apryse documentation

Regards,
Luke