That's my problem Fred. I can easily create templates to a specific size and adding borders to these works great too... BUT...they only work if crop mode is switched on. As soon as you deselect crop, you lose your original layout! Qimage tries to save paper and reduces the larger borders. Maybe this is one for the wish list, but if templates had an option to either lock the original size or reduce to save paper, this would be a really useful feature. Mike's workaround is great for one off prints but roll paper printing with multiple prints of different sizes becomes a pain to do under these circumstances. Would this be difficult thing to achieve in a future release?
I'm not aware of any software that will allow you to define multiple page sizes within a single job. What you are asking is for QU to have a second set of bounds: you'd have to have a print size for each print and another for a "page size" for each print. Borders are print borders: they appear around your print. So if you have crop on and add a 1 inch B border to an 8x10 print, you get a 6x8 print with a 1 inch border all around. But if you turn crop off and you have a typical 3:2 image, your print cannot be 6x8: it can only be 5.33x8 and you'll end up with a 1 inch border around that print which gives you a 7.33x10 inch print (including borders). It's not changing the layout to save space: it's changing the layout because it has to since you've asked it to do something it cannot do.
It's possible that it could be added by, for example, introducing a third type of border: like a "fill border" that could increase the border size beyond what you specify to fill out the size to the original requested size (making two larger borders on 2 sides). I'll look into it. For now, it'd be best to just create the layouts you typically use. That is, use my reply #4 and create a setup for 12x16, A4, A3, 8x10, and any other sizes you want and save them and name them accordingly. Then when you want to print an A4, open the A4 setup, print, open the 8x10 layout, print, etc. That's the easiest way I can think of in the current version.
Regards,
Mike