I see that your print settings are already correctly configured. To further troubleshoot the issue, you could try the following:
Select all objects in your scene (if you have blocks, you need to go inside them as well) and replace the Annotation Styles according to the standard you have determined.
After doing that, let’s take a look at the file. If you copy only the relevant part of your work (Ctrl+C) and paste it into a new Rhino document, it shouldn’t be a problem to share it here.
If you are concerned about sharing specific layers, you can simply delete or clean them up before posting the sample file.
Could you set “template” as hairline, crv layer as lets say 2.0 then save as pdf.
When opening the PDF, do you see correct widths?
Also sofa.PNG file is missing on your rhino, could you add it back and save the PDF? My PDF file is 5mb. I think png or jpg file in Rhino causes increased PDF file anormally.
Please update to the latest service release of Rhino 8. I do recall making some improvements with PDF output recently and updating may help your situation.
Thank you @stevebaer , I will ask to our IT department to install sr28 latest release and will let you know if that fixes.
Should they install sr29 release candidate too?