How to catch the page change event in the document while scrolling it inside the viewer?

Technical Support
1

Which product are you using?
PDF.js Express Plus

PDF.js Express Version
8.1.0

Detailed description of issue
I need to get the page number from a page change event when I scroll through the document. Is there an in built function to do that? I just need to need to get the page number when page is scrolled/changed.

Thank you!

Expected behaviour
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Does your issue happen with every document, or just one?
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Link to document
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Code snippet
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3

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4

Hey!

You can use the ‘pageNumberUpdated’ event like so:

instance.Core.documentViewer.addEventListener('pageNumberUpdated', (pageNumber) => {
    console.log(pageNumber)
  })

Thanks,
Logan