# Why is copying library assets to public folder necessary?

**URL:** https://forum.mupdf.com/t/why-is-copying-library-assets-to-public-folder-necessary/184
**Category:** WebViewer
**Created:** [October 27, 2025, 4:29pm UTC](https://forum.mupdf.com/t/why-is-copying-library-assets-to-public-folder-necessary/184 "2025-10-27T16:29:05Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![39rc](https://yyz2.discourse-cdn.com/flex004/user_avatar/forum.mupdf.com/39rc/32/256_2.png) [@39rc](https://forum.mupdf.com/u/39rc)
#### Post date: [October 27, 2025, 4:29pm UTC](https://forum.mupdf.com/t/why-is-copying-library-assets-to-public-folder-necessary/184/1 "2025-10-27T16:29:05Z")

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Hi, i’m currently going through the docs for the webviewer and I’m a little confused by this step:

> **[Getting Started - MuPDF WebViewer](https://webviewer-docs.mupdf.com/getting-started#copy-the-library-assets)**

Why can’t the webviewer read from the js bundle instead of having to serve up the content publicly?

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### Author: ![Jamie\_Lemon](https://yyz2.discourse-cdn.com/flex004/user_avatar/forum.mupdf.com/jamie_lemon/32/5_2.png) [@Jamie\_Lemon](https://forum.mupdf.com/u/Jamie_Lemon)
#### Post date: [October 28, 2025, 2:32pm UTC](https://forum.mupdf.com/t/why-is-copying-library-assets-to-public-folder-necessary/184/2 "2025-10-28T14:32:14Z")

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Hi @39rc and welcome to the forum.

We are currently working on a version which can deliver these assets directly from CDN.

I don’t think there is any particular _reason_ why it is currently done this way. The assets need to be made available somehow, but I’m not sure of the design decision with respect to the technique used to do this at present.