I am using AutoCAD 2015. I use solid hatch to fill in my logo. However, it shows very furry lines around the logo when I export it to pdf file. When I print the file, the logo looks fine. Just when I review it in pdf on computer, it looks really bad. I need to send the drawings to clients in digital file. So anyone can help me solve this problem? Thanks a lot!!! I checked every place on Internet to solve this problem but without any luck. I will be waiting for answers. Please see below attachment to see the bad effect of the logos in pdf.