Line weight while exporting dwg to pdf

Hello all,

Need your help in resolving an issue with the line weights in PDF.

Since I'm using SOLIDWORKS for making the drawings, the PDF files generated show thick lines but when we press "CTRL+5" the lines becomes thinner and vise-versa.

so I need is in default while exporting to pdf the line weight should be thinner.

Is there any option in solidworks to avoid the use of CTRL+5 in pdf to make the line weight thin by default the line should be thin when exported.

SolidworksDrawings And Detailing