First of all, thanks for the great software. Very handy.
For the Image to PDF settings, there's a checkbox "Optimize for A4 pages sizes" which works fine however I'm in Canada and the standard here as well as in the USA is letter size, which is wider and shorter by a little, 8.5 x 11 inches. I would like to have the option to optimize for letter page size. This would prove useful for lots of people in North America. Unfortunately we're not all on the same standard in the world.