How do I crop?
Select your image, then drag one of the blue triangles in the middle of either side of the image. These triangles aren’t displayed if the image is very small, so you may need to zoom in (pinch the screen) to reveal them.
I can’t connect to my printer
The app uses AirPrint, the built-in printing system used by iOS. To successfully use AirPrint your printer needs to be AirPrint compatible and to be configured as instructed by Apple. If you have just turned on your printer, it can take up a minute before it becomes visible to your iPhone/iPad.
Can I save my page?
Yes, this is a new feature. To do this, tap the Print icon then the Save For Later button. This lets you save a file to iCloud or anywhere. When you want to reopen it, simply open this file and choose to open it in Print To Size.
Can I undo/redo?
Yes, although it’s not easy to find. As with many iOS apps if you shake your device after making a mistake a window will appear with Undo and Redo buttons.
I hope that you are finding the app useful and intuitive. If not, or if you are having any difficulties, please tell me about it!