# Requiring Signature Text to be changed **URL:** \ **Category:** Technical Support\ **Created:** [March 2, 2022, 4:26pm UTC](https://pdfjs.community/t/requiring-signature-text-to-be-changed/1431 "2022-03-02T16:26:01Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![system](https://canada1.discourse-cdn.com/flex031/uploads/pdfjscommunity/original/1X/ffbcd25c7d423db8d5acd5db201c272f4db306dd.png) [@system](https://pdfjs.community/u/system)\ **Post date:** [March 2, 2022, 4:26pm UTC](https://pdfjs.community/t/requiring-signature-text-to-be-changed/1431/3 "2022-03-02T16:26:07Z")
**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: - [Add signatures to PDFs](https://pdfjs.express/documentation/signature/signature-tool) - [API for Signing PDFs with PDF.js Express](https://pdfjs.express/documentation/signature/api) - [Signatures with PDF.js Express](https://pdfjs.express/documentation/signature/overview) APIs: - [UI - setDisplayedSignaturesFilter(filterFunction)](https://pdfjs.express/api/UI.html#.setDisplayedSignaturesFilter__anchor) - [UI.Hotkeys - on(key [, handler])](https://pdfjs.express/api/UI.Hotkeys.html#.on__anchor) - [Core.Tools.SignatureCreateTool - addSignature()](https://pdfjs.express/api/Core.Tools.SignatureCreateTool.html#addSignature__anchor) Forums: - [Position of Signature Tools Areas](https://pdfjs.community/t/position-of-signature-tools-areas/942/1) - [SignatureWidgetAnnotation isSignedDigitally - Always false](https://pdfjs.community/t/signaturewidgetannotation-issigneddigitally-always-false/288/1) - [Is there an event for when signatures get placed onto a PDF?](https://pdfjs.community/t/is-there-an-event-for-when-signatures-get-placed-onto-a-pdf/1080/1) --- _[View the full topic](https://pdfjs.community/t/requiring-signature-text-to-be-changed/1431)._