I do not know why ? Have you tried with some other font, However
Putting in the 2 mm text is like this here. Remember the 2mm is not the height of the lowercase it is the dimensions of a rectangle specified in the font file.
If you want to check what an image looks like printed, then turn off dot-for-dot in the view menu and set the zoom to 100%.
You can use a ruler to check the text height on your computer screen, although an exact 2mm might be difficult to measure .
Putting in the 2 mm text is like this here. Remember the 2mm is not the height of the lowercase it is the dimensions of a rectangle specified in the font file.
If you want to check what an image looks like printed, then turn off dot-for-dot in the view menu and set the zoom to 100%.
You can use a ruler to check the text height on your computer screen, although an exact 2mm might be difficult to measure .