Preview Generator

Highest Nextcloud version

Nextcloud 30
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Author

Richard Steinmetz

Co-Maintainers
  • nextcloud_release_service
Last updated

2 months, 2 weeks ago

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Multimedia

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The Preview Generator app allows admins to pre-generate previews. The app listens to edit events and stores this information. Once a cron job is triggered it will generate start preview generation. This means that you can better utilize your system by pre-generating previews when your system is normally idle and thus putting less load on your machine when the requests are actually served.

The app does not replace on demand preview generation so if a preview is requested before it is pre-generated it will still be shown. The first time you install this app, before using a cron job, you properly want to generate all previews via: ./occ preview:generate-all -vvv

Important: To enable pre-generation of previews you must add php /var/www/nextcloud/occ preview:pre-generate to a system cron job that runs at times of your choosing.

Releases

Nextcloud version Stable channel Nightly channel All releases
30 5.7.0 - 30
29 5.7.0 - 29
28 5.7.0 - 28
27 5.5.0 - 27
26 5.5.0 - 26
25 5.3.0 - 25
24 5.2.4 - 24
23 5.1.1 - 23
22 5.0.0 - 22
21 4.0.0 - 21
20 3.4.1 - 20

Comments

Reinhard Wilgen-Hoff
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1 year, 5 months ago

Thanks for the Preview Tool Works just fine for me! Description, installation very much straight forward 5 Stars: *****

Christian Kujau
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1 year, 8 months ago

Works reasonably well, I wish this extension would be part of Nextcloud core.

Anonymous
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2 years, 1 month ago

Develpment: regular

Issuses: more solved than unresolved ones (although quite high number of them)

Project management: no

Documentation: brief (readme)

Localization: not applicable (only backend)

Releases: frequent (chanelog)

fernosan
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3 years, 6 months ago

The app is very useful for those running nextcloud in machines with slow CPUs, but beware! previews can occupy a colossal space on your hard drive if accepting the default parameters of image sizes (in my case, 35GB for a 250GB SSD). If you have a not-so-slow CPU like an I5 after 2017 for example, I would advise you to not use pre-generated previews.

Please note that the rendering of previews for videos, pdfs and others files can be enabled independently from pre-generated previews.

Nick Baldallo
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4 years ago

It's actually really good. Makes the overall nextcloud experience better, this was something necessary. Thank you guys!

shellkr la
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4 years, 5 months ago

Works really good!

Sven Schirmer
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5 years ago

Must have for anyone using Nextcloud as photo storage. Took me years to find out it exists, and it makes the Gallery app actually useful.

Juan J. Jimenez-Anca
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5 years, 1 month ago

This a must have. Thanks for this!

Michael Kroes
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5 years, 2 months ago

Does an awesome job. Improves performance when viewing images at the cost of storage space.

John Molakvoæ
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5 years, 7 months ago

Awesome app!!

Melroy van den Berg
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6 years ago

I created some PRs to improve the docs. But overall this is a great way to improve loading speeds if you have a lot of images.

lachlan
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6 years, 4 months ago

How has this never existed before now?

Thanks sooo much for making this. Photo previews kill me so much on android especially.