I use an iPhone to take pictures. I want to print my pictures in larger sizes. I need to increase the pixel size. I chose the Affinity Photo app because it was recommended by another Mac user. I have managed to resample and sharpen my photo. I want to export it to Shutterfly. The default file type in Affinity is not compatible. I have tried to change the file format to PNG, JPEG, and GIF. It takes forever for it to render the preview and then it is a blank page with lines on it. I am still in the trial period with this app and if I can't get this figured out I will not purchase it. I tried Adobe Photoshop, and it is not designed to work with a Mac, in that you cannot open photos from the photo library.
Thanks in Advance
