IMPORTANT!
eBay will not accept HEIC format pictures- the sort Apple iPhones typically use, these days.
If the image is uploaded here in HEIC format, we’ll have to convert it before we can use it. Better for you to convert it in your phone before you share it with us.
If the image in question was scanned on a scanner then it may be in PDF or jpg form. Again, PDF is not accepted by eBay, so we’d have to convert it. If possible, ask the scanner to create a jpg scan.
Finally, we can use PNG formats, which are possibly better quality, but do take up more space. Not a problem for eBay, and not a problem on this site, but maybe an issue for your capacity to upload, particularly from a cell phone on data plans.