I use Gigapixel for months for upscaling my image and increase resolution (from 96 dpi to 150/300 dpi) and it works well. However, I try to do samething with Photo AI by specifying “IN” as unit of measure and the value “150” px/in and it doesn’t work as it should be; the new upscale picture is kept at 96 dpi instead of 150 dpi. I set both width and height value properly to Inch and px/in value to 150.
Resolution should be working as expected now. Please take a screen recording of this behavior so I can see exactly what is happening. Loom is a great free application for this: Download the Loom Desktop App | Loom