Kristin - Etsy should take your pictures as long as they are no larger than 1000 pixels wide. I downsize mine to about 450 pixels so that I can use them both on Etsy and eBay. Just go into your photo editing software and find where you can resize the picture. Then you can choose to resize it by pixels and change the size. If it has a box that says to keep the proportions the same then make sure that is checked. Hope this helps.