For Online Computer Support, Ask a Computer Technician
Hi my name is ***** ***** I will be the expert working with you today to help resolve the problem you have posted.
you cannot post a photo which exceeds the limit of size which is permissible by the website owner however if you see facebook you can post your profile photo, it must be 180 x 180 twitter has a different size and other websites depend on the size permitted.
you cannot uncrop the photo which is already posted on a website you can only save it as its being saved in a cropped format and size.
let me know if you have any question.