arcgis desktop - Avoid reshaped/jagged polygons when exporting from ArcMap to PDF

I realised that exporting a huge amount of building polygons (in my case 86,000 polygons) to a A2 PDF within ArcGIS 10.2.2 the polygons get unacceptably jagged or even reshaped. It gets a bit better if the dpi value is set to a higher number (e.g. 1000) but it's still not the desired quality.

Polygons within my ArcMap data frame:

Polygons after export to a PDF (400 dpi):

Is there a way to avoid this problem?

Answer

Finally, with the help of the comments above and try and error I could minimalize the error. The following has helped:

• It was no difference between "export map" and exporting via "printer".


• As suggested by johns in the comments section place the polygons above all other (transparent, raster) layers in the TOC



• Set the DPI to 3000. Unfortunately this leads to a huge PDF size.


• However, there are several factors to reduce the file size within the pdf export options:
  
  
  
  • Set resample ratio to 1:2
  
  
  • Uncheck "Export Map Georeference Information"