Samuel CHEMLA

Hi, does your web upload uses webdav protocol? FYI nextcloud uses `X-OC-MTime` and `X-OC-CTime` headers. See https://docs.nextcloud.com/server/latest/developer_manual/client_apis/WebDAV/basic.html#request-headers

OK, thanks for your info. I just saw the discussion for creation/modification timestamps over webdav happens here: https://github.com/photoprism/photoprism/discussions/2550

I just spent hours trying to achieve this before I saw your post. Thanks! There should be a word about this in the doc...

Hi, preview generation is very long on my i3-4020Y CPU @ 1.50GHz 4gb ram. Loading 20pictures from local network take up to 3min, most of the time is spent in...

Related issue : #437 Maybe related issues : #449 and https://github.com/nextcloud/server/issues/7269

And some interesting reading: https://ownyourbits.com/2019/06/29/understanding-and-improving-nextcloud-previews/ and a PR here: https://github.com/nextcloud/server/pull/16158

ok, both previews are generated in `OC\Preview\Generator::getPreview()`: ```php /** * Returns a preview of a file * * The cache is searched first and if nothing usable was found then...