first you must save the photo into your photo file on your desktop, then view it and there should be an option to open up paint
then you can do one of two things, you can either click resize, go to the pixel area, make it 1900 pixels wide and then crop it using the crop option and looking on the bottom part of the screen to the proper dimensions
or u can go to resize, uncheck the "keep aspect ratio" option and resize it to the required dimensions
or if this is confusing PM me the pics and i'll do it, then i will email them back to you