# Load multiple instances on a single page without loading same js files

**URL:** <https://pdfjs.community/t/load-multiple-instances-on-a-single-page-without-loading-same-js-files/1173>\
**Category:** Technical Support\
**Created:** [November 9, 2021, 7:56pm UTC](https://pdfjs.community/t/load-multiple-instances-on-a-single-page-without-loading-same-js-files/1173 "2021-11-09T19:56:29Z")\
**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, 7:56pm UTC](https://pdfjs.community/t/load-multiple-instances-on-a-single-page-without-loading-same-js-files/1173/3 "2021-11-09T19:56:34Z")

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**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:
- [What is PDF.js Express? - Load PDF.js Express Viewer from another domain](https://pdfjs.express/documentation/learn-more/inside-express-viewer.8#load-pdf.js-express-viewer-from-another-domain)
- [Integrating PDF.js Express Plus with React - 3. Place WebViewer into a component](https://pdfjs.express/documentation/get-started/react#3.-place-webviewer-into-a-component)
- [Adding your license key](https://pdfjs.express/documentation/get-started-viewer/add-license-key)

APIs:
- [UndefinedWebViewer(options, viewerElement)](https://pdfjs.express/api/global.html#WebViewer__anchor)
- [UI.MentionsManager - one(type, fn)](https://pdfjs.express/api/UI.MentionsManager.html#one__anchor)
- [Core.Annotations.RotationUtils - PathCustomAnnotationRotationMixin()](https://pdfjs.express/api/Core.Annotations.RotationUtils.html#PathCustomAnnotationRotationMixin__anchor)

Forums:
- [How to load different pdf on pdfjs express viewer on passing url through button click](https://pdfjs.community/t/how-to-load-different-pdf-on-pdfjs-express-viewer-on-passing-url-through-button-click/320/1)
- [Using instance.loadDocument() inside useEffect to open a file](https://pdfjs.community/t/using-instance-loaddocument-inside-useeffect-to-open-a-file/318/1)
- [Help with Custom Rectangle tool button](https://pdfjs.community/t/help-with-custom-rectangle-tool-button/224/4)

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