Maximum inline image size?

Tangentially: everybody should also be aware that images as directly displayed are untagged, even if a profile is embedded in the submitted file. The profile kicks in when you click to bring up the full version.

At least it works that way in Firefox.

This matters mostly to people with wide gamut monitors, but those with standard gamut might want to keep it in the back of their heads.

I presume you know it already, John.

When you upload the image to your/another website and use a link, the width that awakens the scroll bar is somewhere between 510 and 560 px, and the length can be at least 1050 px.

I have never used, and never encountered the actual limitations of, inserting an image.

I have wondered about this too, and posted some test images in the testing forum.

It seems landscape images above 450 pixels are still scaled to 450. But images that are prepared to 450 pixels then get scaled to 310! Why is that?

310, however, is left alone, so that appears to be the practical target size.

Vertically the limit seems to be 600.