Hello
I haven't found a discussion on this subject so:
in my MEP the tangent edges pass over the strong lines. Conclusion, when printing PDF my sets become like... ghostly since my tangent edges are grey.
How do I change the order of tracing layers?
I was thinking of changing the order of my layers with the " Move " button in the slap properties but this button seems useless!
Hello
It's not so much a question of layer order as the associated line properties as well as the quality of the PDF (and whether the view is in high quality or not can also impact the PDF output).
We have had other cases where no settings have set the PDF output quality, we have used "print" to pdf (PDF Creator for example) to get something readable.
Ditto I use CutePDF Writer (virtual printer) to have a print identical to the paper version, and not the save as / pdf function. (Microsoft's never-tested pdf)
Also note that the High box in the layout menu takes a lot of time to generate the pdf, with a save as window that lasts a few seconds, which forces you to stay with your eyes glued to the screen, and limits without touching the keyboard at the risk of closing this window and having to restart printing.
Edit:
I make my PDFs in 600dpi.
Personally, I developed a macro that generates the PDF in one click on an icon. No basic folder selection to be made (possibility left in the macro).
Much faster than saving as.
The 600dpi increases the file size quite a bit, we had found a compromise for the drawings causing problems at 300dpi of memory but it doesn't solve the problem of "ugly" plots of the basic SW save as pdf function
Thank you for your feedback.
I also use a macro for quick processing
she says:
Set swExportData = swApp.GetExportFileData(swExportPdfData)
filename = swModel.GetPathName
So it's like recording under the blow.
I have a second macro that does PDF and DXF at the same time with the same code so same problem.
Yes, my views are in high quality.
No, increasing the quality of the PDF does not change anything except the file size.
Printing in PDF gives me the same result.
I'm looking tomorrow at a file where we had the same type of problem how we fixed it.
Another question you are on which version and sp of SW?
Hello
I'm working on SW 2022
In the system options, look in the PDF export settings to see how you are configured.
In our country, for example, it is like this:
Also look at the document properties to see how the line fonts are set up:
I turned everything on that side. Nothing changes the order of the layers.
There is even an option to go back to a tangent line management of Solidworks 2009. The lines are displayed a little differently, but the contours are just as ugly...
I concluded by changing the color of the tangent lines to black like the rest. The views are a little busier but at least it's black on black.
The basic problem remains the same though, but at least my sets are readable.
It's still peculiar that tangent lines dominate the strong lines to the impression!
Maybe it's a bug to fix on the Solidworks side?
In any case, thank you for trying on your side! 
To your calculator to know which colors to put so that your fine lines are under the black lines...
So in the end EVERYTHING is above black which is at 0,0,0 in RGB.
Champions at SW...
Hello
Well, I wouldn't have found this one on my own by rummaging through the menus.
Excellent! You can feel the development dedicated to the cartoonists. So I can make pretty plans in paper but not in PDF 
It's still complicated to have different colors on the same drawing as a result. All in black will be fine. Just like in the days of rotring! 2023—>Plan file at the RoRing, everything is fine.
