Thank you, thats what I was looking for, I remember size will determine items type available to sell to sell
Am I able to see file data once uploaded? If so how?
Basically, save your JPG at the largest size possible to get under the 25 MB limit and upload. So far, I have not run into size issues with files from my current Canon 60D or former Digital Rebels
Be sure to check the file size on the unopened file as that will be a lot less the uncompressed open file. They also accept png files. What ever DPi your camera saves at is fine. You don't have to change that because it is set before printing. Upsizing the pixels will degrade the image and even degrades the smaller one so it is discouraged.
The file sizes are pretty easy to ascertain. If you have a file that is 3000 pixels wide, that equals 30 inches in print size. FAA will not let you fill in the field on a size larger than you have uploaded. It's fairly easy.
If you have the preview enabled you can click on an uploaded image and it will tell you the pixel dimensions. The pixel dimensions is the only size dimension you need to be concerned with and as Joseph said it will allow you an inch of print for every 100 pixels.
I have a question about the quality of my images. I use a $200 Canon Powershot camera and am concerned about the quality. What are people using to photograph their work? I have saved the images in the largest size. Is this the right thing to do?
Kay - check the settings on your camera. The images you've posted are only 700 pixels on the longest side, which is definitely not the largest size your camera is capable of taking.