Printing black lines with gray colors

Hello friends,
I have a problem the lines are black in the preview of the print but when I create the pdf the colors of the dimensions become darker, does anyone know why this error?

hi @bruno_flausino, Can you post an image of what you’re seeing and an example file?

@Vanessa teatro2.pdf (360.7 KB)

Hi Bruno - looks like, maybe, the dimensions are set to print thicker than the curves? Can you post your Rhino file or send to