How to upload " CUT PHOTOS" Here's a step-by-step guide First, download and install 9Cut for the Instagram app on your Android phone. Now select the photo you want to post into the grid on Instagram. You can also take a new picture using the Camera option. Next, crop the photo and select the grid format you want to apply. There are different grid formats available: 3x1, 3x2, 3x3, 3x4, 3x5, etc. Finally, you can post the photos to Instagram or save them on your phone.