The maximum image quality of Fotor is 8mp but if you are using an iPhone 4 or older as well as an iTouch 5, the maximum image quality is 5mp. If your photo is reduced to less than the corresponding size in relation to your device, please follow the steps below to check Fotor’s settings:
Open Fotor, and click avatar to access “setting” section
Processing Quality/Sharing Quality→ High
If the photo is taken by something other than your iOS camera, you can edit the photo using Fotor for Mac/Windows.