# Internal links don't work in PDF.js Express viewer

**URL:** https://pdfjs.community/t/internal-links-dont-work-in-pdf-js-express-viewer/1168
**Category:** Technical Support
**Created:** [November 9, 2021, 10:56am UTC](https://pdfjs.community/t/internal-links-dont-work-in-pdf-js-express-viewer/1168 "2021-11-09T10:56:23Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![system](https://canada1.discourse-cdn.com/flex031/uploads/pdfjscommunity/original/1X/ffbcd25c7d423db8d5acd5db201c272f4db306dd.png) [@system](https://pdfjs.community/u/system)
#### Post date: [November 9, 2021, 10:56am UTC](https://pdfjs.community/t/internal-links-dont-work-in-pdf-js-express-viewer/1168/3 "2021-11-09T10:56:28Z")

</div>

**Hello, I’m Ron, an automated tech support bot 🤖**

While you wait for one of our customer support representatives to get back to you, please check out some of these documentation pages:

Guides:
- [Manually download and integrate PDF.js Express Viewer - Run samples](https://pdfjs.express/documentation/get-started-viewer/manually#run-samples)
- [PDF.js Express Viewer](https://pdfjs.express/documentation/viewer/overview)
- [PDF.js Express Viewer Overview - Select an integration or framework to get started - Frameworks](https://pdfjs.express/documentation/get-started-viewer#frameworks)

APIs:
- [PDF.js Express Utilities](https://pdfjs.express/api/utils/index.html#__anchor)
- [ExpressUtils(optionsopt) - # async extract() → {Promise.}](https://pdfjs.express/api/utils/ExpressUtils.html#extract__anchor)
- [Core.Bookmark - new Bookmark(children, name, pageNumber, parent, verticalOffset, horizontalOffset [, url] [, index])](https://pdfjs.express/api/Core.Bookmark.html#Bookmark__anchor)

Forums:
- [Undefined is not a valid destination type](https://pdfjs.community/t/undefined-is-not-a-valid-destination-type/809/1)
- [Licensing problem in a intranet environment](https://pdfjs.community/t/licensing-problem-in-a-intranet-environment/1116/4)
- [Is there a way to get destinations of contents such as figures, tables and equations in PDF?](https://pdfjs.community/t/is-there-a-way-to-get-destinations-of-contents-such-as-figures-tables-and-equations-in-pdf/1113/1)

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