# Disable PDF/Document Thumbnails?

**URL:** <https://help.nextcloud.com/t/disable-pdf-document-thumbnails/88583>\
**Category:** ℹ️ Support\
**Tags:** previewgenerator-app\
**Created:** [July 30, 2020, 5:12am UTC](https://help.nextcloud.com/t/disable-pdf-document-thumbnails/88583 "2020-07-30T05:12:52Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![gas85](https://help.nextcloud.com/user_avatar/help.nextcloud.com/gas85/32/7772_2.png) [@gas85](https://help.nextcloud.com/u/gas85)\
**Post date:** [August 6, 2020, 9:24am UTC](https://help.nextcloud.com/t/disable-pdf-document-thumbnails/88583/7 "2020-08-06T09:24:46Z")

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> [@plague69](#):
>
> Didn’t work unfortunately.

Thats strange… May be you can open a bug report here

> **[Issues · nextcloud/server](https://github.com/nextcloud/server/issues)**
>
> ☁️ Nextcloud server, a safe home for all your data - Issues · nextcloud/server

> [@plague69](#):
>
> Still streaming in slowly generating previews. Maybe I’ll just increase ram to 16GB and CPU count to 16 on the VM and call it a day

Is your problem performance? You can pre generate previews with [Preview Generator](https://apps.nextcloud.com/apps/previewgenerator) by cron job, then it will be much quicker. Even I wrote small script to see some information in logs. [How to know if Preview Generator is working? - #6 by gas85](https://help.nextcloud.com/t/how-to-know-if-preview-generator-is-working/41072/6)

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