[Khalifah Iskandar]

Pull out the ruler, ctrl-R if im not mistaken, right click on the ruler and change to milimeter, and check the design dimension once again. The conversion between px to mm is real time. Check the ppi information. If it’s already at 72 ppi , you can’t upscale that design/image (pixelated for sure) and make sure to press shift + alt at the same time to scale to maintain original ratio. plus. Make a square of 20 x 20 mm for guide. Cheers !