Hello, I have been working on this project and i made a PCB, but before printing it, i wanted to make sure that all dimensions are corrects so i exported it as pdf 1:1 and printed the document, but the dimensions are not the same in some places. For example, this one is 63mm :  but on document when i measured it s only 60mm as well as the size is not correct :  it shows 26x75mm but i measure : 25x73mm.