# Issue with the license API not getting called

**URL:** <https://pdfjs.community/t/issue-with-the-license-api-not-getting-called/2664>\
**Category:** Technical Support\
**Created:** [June 22, 2023, 6:15pm UTC](https://pdfjs.community/t/issue-with-the-license-api-not-getting-called/2664 "2023-06-22T18:15:32Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![kkim](https://avatars.discourse-cdn.com/v4/letter/k/3ab097/32.png) [@kkim](https://pdfjs.community/u/kkim)\
**Post date:** [June 26, 2023, 10:15pm UTC](https://pdfjs.community/t/issue-with-the-license-api-not-getting-called/2664/4 "2023-06-26T22:15:46Z")

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Hi there,

Thank you for your response,

Please note that pdf.js express may not support multiple instances at the same time, see similar post here:

> [@Load multiple instances on a single page without loading same js files](https://pdfjs.community/t/load-multiple-instances-on-a-single-page-without-loading-same-js-files/1173):
>
> Which product are you using? PDF.js Express Plus PDF.js Express Version 8.1.1 Detailed description of issue We have situations where we need to load 1-4 pdfs on a single page, however I noticed that it will load duplicates of the same JS files. Is there a way to create instances that will share the same files and not load them all over again? [Screen Shot 2021-11-09 at 11.54.59 AM] Expected behaviour Create multiple pdf instances without loading duplicate js files. Does your issue happe…

Best regards,  
Kevin Kim

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