I use PS Express with Win Phone 8.1. I miss a function to change the size of the picture, i. e.: Original size is 6000 x 4500 pixel. For sharing the file by sending an email I would like to change the size of the picture maybe to 1600 x 1200 pixel to reduce filesize. I know that WinPhone reduces resolution and jpg-compression-rate automaticly when I select a picture as an attachment to an email. But this works only with the build in email-client and not with the email-app of my favorite provider. By the way: The way windows handles the change of the file size gives the user no control about the result. So please, add the function "Change resolution and file size" to Photoshop express for WinPhone.