# Adding Button to Tools Popup

**URL:** <https://pdfjs.community/t/adding-button-to-tools-popup/272>\
**Category:** Technical Support\
**Created:** [September 18, 2020, 9:52am UTC](https://pdfjs.community/t/adding-button-to-tools-popup/272 "2020-09-18T09:52:13Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![zzhang](https://avatars.discourse-cdn.com/v4/letter/z/b9e5f3/32.png) [@zzhang](https://pdfjs.community/u/zzhang)\
**Post date:** [September 18, 2020, 8:06pm UTC](https://pdfjs.community/t/adding-button-to-tools-popup/272/2 "2020-09-18T20:06:09Z")

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Hi Abhishek,

Unfortunately there’s no UI API that allows you to do so, but what you want can be achieved by modifying the UI source code.

From the screenshot it looks like this is the [component](https://github.com/PDFTron/webviewer-ui/blob/legacy/7.0/src/components/ToolStylePopup/ToolStylePopup.js) that you want to change the source code.

Best Regards,  
Zhijie

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