Exporting a sketch to a laser cutter

Hi,

SolidWorks sketching tools is what I find to be the most convnient tool to use for my laser cutting needs. I'm looking for a way to save a sketch as a DXF\DXW\PDF file, while preserving the exact sizes I specified in the sketch. When I try to do that - the sketch get scaled to A4 or shows as empty...

SolidworksSketching