After reading through this topic , and this one , and this one , I’m not entirely sure what Discourse does with large images. My previous understanding is that there is no software resizing done, just CSS - that image size was limited by maximum image upload size in kB and that was that. If a larger im…

Reading the code, max megapixels is a hard restriction. It is a safety switch not something the system uses to make decisions about downsizing with. max_image_size_kb is the sole deciding factor for auto downsizing on upload. Bump up max megapixels to the absolute largest amount of megapixels you …

After mashing buttons for awhile to figure things out, this is what I think is happening: With a default install, client_max_body_size == max image size kb, images will not be resized. Increasing client_max_body_size will allow larger uploads, which Discourse will then attempt to resize under …

Hmm, I just looked at nginx.sample.conf on github and it seems that the default for client_max_body_size is now 10 MB rather than 4 MB. Has this always been the case? I don’t recall ever making a change to that file on my install before today.

Thanks for thorough testing with current version. I’ve checked it and it looks like that works in practice just as you described.

Max body size has been 10 for quite a while, we should probably increase it to 20 Agree we should improve the site setting description, will do so later today. EDIT: Documentation is updated per: https://review.discourse.org/t/doc-improve-documentation-of-image-limit-site-settings/9303

Hi Sam, going by the description there doesn’t seem to be working for me: + max_image_size_kb: “The maximum image upload size in kB. This must be configured in nginx (client_max_body_size) / apache or proxy as well. Images larger than this and smaller than client_max_body_size will be resized t…

I think this is a separate feature request. Certainly if you push max image size down to 200k, it totally makes sense to just resize the hotlinked images when we download them. There are thresholds at play, we should not download a 700 gigabyte image just to figure this out, but yeah something could…

[image] sam: Certainly if you push max image size down to 200k, it totally makes sense to just resize the hotlinked images when we download them. I agree Sam. I can’t think of any reason why you wouldn’t want downloaded hot linked images to follow the same rules tbh. I also just discovered …

[image] This is the default setting on our forums. I tried to change it to 20000 and it worked (or appeared to stick), but when I went to upload an image/GIF that was 17.2mb I was greeted with this error message: [image] Can you tell me what path I would go to (commands to enter) in linux, wher…

[image] Change the maximum attachment/upload size Self-Hosting bookmark This guide explains how to change the maximum attachment upload size for self-hosted Discourse instances. person_raising_hand Required user level: System Admin The default attachment upl…

Image upload size/resize question

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riking (Kane York) March 10, 2020, 8:38pm 16

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Image upload size/resize question

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