I've noticed that cells that are bordered using the thin, solid line style show up much thicker when exporting to PDF using the driver built-in to Excel. To illustrate, I created two columns that are bordering using thin and dotted
line styles in colors ranging from black 100% to white 5%.
Here's what I want (screen shot of Excel):
And when I export to PDF using the exporter built-in to Excel, here's what I get (screen shot of Adobe Acrobat Reader DC, same results using other PDF viewers):
Please let me know how this can be fixed. I've tried exporting with CutePDF and get similar results, so this must be an issue on the Excel side. I'm using Excel 2013 (15.0.4997.1000) running on Windows 7 64-bit.