# 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:** 5
**Page:** 1
### Author:  [@justin.spencer](https://pdfjs.community/u/justin.spencer)
#### Post date: [March 9, 2022, 12:08pm UTC](https://pdfjs.community/t/pdf-js-express-plus-trial-version/1458/1 "2022-03-09T12:08:20Z")
I can get a trial key for PDF.js Express Free Viewer but not for PDF.js Express Plus. How do I evaluate the annotation features in a development area before committing to buying a licence?
I know the previous version allowed you to run a trial/watermarked version without a licence key. How do I get the same evaluation instance with the updated version?
Thanks,
Justin
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### Author:  [@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")
**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-)
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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### Author:  [@Logan](https://pdfjs.community/u/Logan)
#### Post date: [March 9, 2022, 3:15pm UTC](https://pdfjs.community/t/pdf-js-express-plus-trial-version/1458/4 "2022-03-09T15:15:44Z")
Hey there,
You can install and use PDF.js Express Plus without providing a license key. It will run in demo mode (watermarked) until you provide a valid key.
Thanks,
Logan
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### Author:  [@justin.spencer](https://pdfjs.community/u/justin.spencer)
#### Post date: [March 9, 2022, 4:26pm UTC](https://pdfjs.community/t/pdf-js-express-plus-trial-version/1458/5 "2022-03-09T16:26:08Z")
Hi Logan, yes you’re correct thanks. I had incorrectly downloaded the viewonly version.
Thanks again.
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### Author:  [@Logan](https://pdfjs.community/u/Logan)
#### Post date: [March 11, 2022, 3:29pm UTC](https://pdfjs.community/t/pdf-js-express-plus-trial-version/1458/6 "2022-03-11T15:29:16Z")