This is in the Selling images FAQ

Images on Stockxpert come in the following sizes depending on the original size of the uploaded image:

    * S ~ 0.5 megapixels
    * M ~ 2 megapixels
    * L ~ 4 megapixels
    * XL ~ 8 megapixels
    * XXL ~ 15 megapixels or more

I had in my notes 0.48, 1.9, 4.32 and 8.4Mpix for the S, M, L and XL, respectively, I don't remember where I took this from.  However, my 7.1Mpix images are XL already, and the 3.9Mpix are L.

So does anyone know what are the correct limits in each size?

Regards,
Adelaide