The DPI is greyed out, how can I export my file with high resolution? The DPI is greyed out, how can I export my file with high resolution?

The DPI is greyed out, how can I export my file with high resolution?

You will not be able to change the resolution when the dimensions of the figures are in Pixels. As DPI (also PPI) is dots (also pixels) per inch. This means you cannot designate a "per inch" if there are not inches/centimeters.

To change the resolution, please change the dimensions from pixels to inches as shown below: