Some tech savvy dopes like @penultima_thule and @susan have added spiffy banner pics to the top of their profile pages.
How do I do that? I’ve got a couple of pix on my iPhone that I could try, but I don’t know how. Does it have to be a wide-angle or panorama shot, or would a regular landscape orientation work?
Did you try reducing the dimensions/resolution? Whatever software you are usually opening the file in might automatically fit the picture to the screen and hide the fact that it has more pixels than 16 screens worth (or something).
The file size also needs to be reasonable. Not 5MB. Assuming a PC, opening it in MSPaint, resizing it to 30% of the original dimensions and saving it will be a roughly 90% reduction in file size.