Don't know
However if you try to upload pictures directly from a modern phone they will always get rejected because the forum softwear can not recognise RAW format pictures.
I resize to 12" on the long side @ 72 dpi in photoshop then save as a jpg.
#3
Scrubcadet10
i upload any pics to here, and insert them by copying the direct link, and clicking the photo icon, next to the paper clip icon in the toolbar of the post window.
Provides free image upload and hosting integration for forums. Free picture hosting and photo sharing for websites and blogs.
postimages.org
#4
StarTech
Personally I use 600x600 dpi Jpeg images here and on my home forum; although, I did up the size a little to 640x600 dpi on that forum. I use Imgur myself if I need to post on sites that don't have have direct upload option.