# Parts of PDF text are not displayed - like whiteout has been wiped across

**URL:** <https://pdfjs.community/t/parts-of-pdf-text-are-not-displayed-like-whiteout-has-been-wiped-across/1895>\
**Category:** Technical Support\
**Tags:** pdfjs-express\
**Created:** [July 22, 2022, 10:45am UTC](https://pdfjs.community/t/parts-of-pdf-text-are-not-displayed-like-whiteout-has-been-wiped-across/1895 "2022-07-22T10:45:04Z")\
**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:** [July 22, 2022, 10:45am UTC](https://pdfjs.community/t/parts-of-pdf-text-are-not-displayed-like-whiteout-has-been-wiped-across/1895/3 "2022-07-22T10:45:10Z")

</div>

**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:
- [PDF.js Express Viewer Overview - What is PDF.js Express Viewer?](https://pdfjs.express/documentation/get-started-viewer#what-is-pdf.js-express-viewer?)
- [Adding your license key - PDF.js Express Viewer License Keys](https://pdfjs.express/documentation/get-started/add-license-key#pdf.js-express-viewer-license-keys-<span-class='viewer'></span>)
- [Browser support for PDF.js Express](https://pdfjs.express/documentation/learn-more/browser-support)

APIs:
- [Core.DocumentViewer - refreshAll()](https://pdfjs.express/api/Core.DocumentViewer.html#refreshAll__anchor)
- [ExpressUtils(optionsopt) - # async extract() → {Promise.}](https://pdfjs.express/api/utils/ExpressUtils.html#extract__anchor)
- [PDF.js Express Utilities](https://pdfjs.express/api/utils/index.html#__anchor)

Forums:
- [PDF.js Express Viewer not working via reverse proxies](https://pdfjs.community/t/pdf-js-express-viewer-not-working-via-reverse-proxies/1255/1)
- [PDF.js Express Viewer Watermarks](https://pdfjs.community/t/pdf-js-express-viewer-watermarks/1614/1)
- [Pdf.js Express Viewer rendering issue on live site](https://pdfjs.community/t/pdf-js-express-viewer-rendering-issue-on-live-site/1584/1)

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