# PDF.js Express Plus - Trial version

**URL:** <https://pdfjs.community/t/pdf-js-express-plus-trial-version/1458>\
**Category:** Technical Support\
**Created:** [March 9, 2022, 12:08pm UTC](https://pdfjs.community/t/pdf-js-express-plus-trial-version/1458 "2022-03-09T12:08:20Z")\
**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:** [March 9, 2022, 12:08pm UTC](https://pdfjs.community/t/pdf-js-express-plus-trial-version/1458/3 "2022-03-09T12:08:25Z")

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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:
- [PDF.js Express Viewer Overview - What is PDF.js Express Viewer?](https://pdfjs.express/documentation/get-started-viewer#what-is-pdf.js-express-viewer?)
- [Integrating PDF.js Express Plus into a new Blazor project - Prerequisites](https://pdfjs.express/documentation/get-started/blazor/new-project#prerequisites)
- [Adding your license key - PDF.js Express Plus License Keys](https://pdfjs.express/documentation/get-started/add-license-key#pdf.js-express-plus-license-keys-<span-class='plus'></span>)

APIs:
- [Development](https://pdfjs.express/api/utils/index.html#__anchor)
- [Core.Tools.SignatureCreateTool - getPreview(annotation)](https://pdfjs.express/api/Core.Tools.SignatureCreateTool.html#getPreview__anchor)
- [Core.Tools.FreeTextCreateTool - isAutoFocusingOnCreate()](https://pdfjs.express/api/Core.Tools.FreeTextCreateTool.html#isAutoFocusingOnCreate__anchor)

Forums:
- [Can I remove pdfjs.express watermark from viewer?](https://pdfjs.community/t/can-i-remove-pdfjs-express-watermark-from-viewer/1073/4)
- [Seeing watermark with plus package and even with paid license](https://pdfjs.community/t/seeing-watermark-with-plus-package-and-even-with-paid-license/1417/1)
- [Generating a key for a .co.uk domain](https://pdfjs.community/t/generating-a-key-for-a-co-uk-domain/1388/1)

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