Cloudron Forum

Hi to everybody, I need to enable preview PDF and Video on my Nextcloud.
I need to execute this command:

apt install ffmpeg imagemagick ghostscript

and this

nano /etc/ImageMagick-6/policy.xml

to change some parameter.

If I try to execute: apt install ffmpeg imagemagick ghostscript

I receive this message:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package ghostscript is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

Package ffmpeg is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

W: Not using locking for read only lock file /var/lib/dpkg/lock
E: Package 'ffmpeg' has no installation candidate
E: Package 'ghostscript' has no installation candidate

I can show you:
This image Is without the mod in Nextcloud Cloudron:

And this image show how it work in my Nextcloud:

With the mod you can see a preview of PDF, Image and if you want OFFICE ecc... (but I do not need)

I have follow this guide:
https://www.allerstorfer.at/nextcloud-install-preview-generator/
and
https://www.allerstorfer.at/imagemagick-fix-policymap/

Thats all

@girish thank you. work like a charm.

I have only PDF and video MP4 and work perfect.