# Can we use annotations while offline?

**URL:** <https://pdfjs.community/t/can-we-use-annotations-while-offline/1939>\
**Category:** Technical Support\
**Tags:** pdfjs-express\
**Created:** [August 12, 2022, 8:37am UTC](https://pdfjs.community/t/can-we-use-annotations-while-offline/1939 "2022-08-12T08:37:01Z")\
**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:** [August 12, 2022, 8:37am UTC](https://pdfjs.community/t/can-we-use-annotations-while-offline/1939/3 "2022-08-12T08:37:05Z")

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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:
- [Saving a document with annotations](https://pdfjs.express/documentation/basic-operations/save-document/save-with-annotations)
- [Create annotations - Programmatically](https://pdfjs.express/documentation/annotation/create-annotations#programmatically)
- [What is PDF.js Express? - Web Viewer’s iframe](https://pdfjs.express/documentation/learn-more/inside-express-viewer.8#web-viewer's-iframe)

APIs:
- [Core.Annotations - setCustomDrawHandler(annotationClass, drawHandler [, options])](https://pdfjs.express/api/Core.Annotations.html#.setCustomDrawHandler__anchor)
- [Annotations.Annotation - resourcesLoaded()](https://pdfjs.express/api/7.0/Annotations.Annotation.html#resourcesLoaded__anchor)
- [Annotations.CustomAnnotation - resourcesLoaded()](https://pdfjs.express/api/7.0/Annotations.CustomAnnotation.html#resourcesLoaded__anchor)

Forums:
- [PDF.js Express Viewer document secure - HIPAA](https://pdfjs.community/t/pdf-js-express-viewer-document-secure-hipaa/1643/5)
- [Annotations going to Readonly mode when accessed the same webviewer from multiple clients](https://pdfjs.community/t/annotations-going-to-readonly-mode-when-accessed-the-same-webviewer-from-multiple-clients/543/3)
- [Loading annotations without reloading webviewer](https://pdfjs.community/t/loading-annotations-without-reloading-webviewer/252/2)

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