Quick but not precise
The app is a bit strange. It does what it says, but with other resolution it indicates. For example, I have made several photo pictures by LG G2 smartphone. Its native resolution is 4160 x 2340. So the app suggested me the size of 800 x 600. I agreed. It did the job, and rather quickly. But instead of 800 x 600 it made 1600 x 1200 !! So the aspect ratio is the issue. Still, after inspecting the images I was generally content with the outcome.. (Mavericks, MacBook Pro 15 Retina).
Nicolas Alnis about
Photo-Resizer