# The upload component

**URL:** <https://pdfjs.community/t/the-upload-component/1144>\
**Category:** Technical Support\
**Created:** [November 3, 2021, 6:27pm UTC](https://pdfjs.community/t/the-upload-component/1144 "2021-11-03T18:27:56Z")\
**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 3, 2021, 6:27pm UTC](https://pdfjs.community/t/the-upload-component/1144/3 "2021-11-03T18:27:59Z")

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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:
- [How to customize viewer - What option should I choose - Config file](https://pdfjs.express/documentation/ui-customization/customizing-setup.8#config-file)
- [Open a document, add annotations, download](https://pdfjs.express/documentation/use-case/upload-download.8)
- [Integrating PDF.js Express Viewer into an existing Blazor project - Integrate PDF.js Express Viewer](https://pdfjs.express/documentation/get-started-viewer/blazor/exist-project#integrate-pdf.js-express-viewer)

APIs:
- [Core.PartRetrievers](https://pdfjs.express/api/Core.PartRetrievers.html#__anchor)
- [Core.Annotations.FileAttachmentAnnotation - new FileAttachmentAnnotation( [initializer])](https://pdfjs.express/api/Core.Annotations.FileAttachmentAnnotation.html#FileAttachmentAnnotation__anchor)
- [Tools.Tool - contextMenu(e)](https://pdfjs.express/api/7.0/Tools.Tool.html#contextMenu__anchor)

Forums:
- [Git cloning to local repository of the latest demo](https://pdfjs.community/t/git-cloning-to-local-repository-of-the-latest-demo/437/2)
- [I cannot use PDF.JS Express to open a PDF file by url in a Vue Project, please help me figure out how is that happen](https://pdfjs.community/t/i-cannot-use-pdf-js-express-to-open-a-pdf-file-by-url-in-a-vue-project-please-help-me-figure-out-how-is-that-happen/660/1)
- [Is it possible to use exportAnnotations to export individual widgets and fields](https://pdfjs.community/t/is-it-possible-to-use-exportannotations-to-export-individual-widgets-and-fields/964/3)

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