Hatch prints in solid black blocks

[Anonymous]

Hi, 

I've drawn a simple floor plan, when i export it to pdf everything looks normal. However, when i go to print, it prints with large black blocks over the drawing. I have tried changing my plot style and messing around with hatch scale etc. but nothing seem to work. I would appreciate it if anyone has any ideas on what the problem may be. I've attached  what my plans look like as exported and a pic of what they look like printed.  

Thank you 

[pendean]

Post your actual PDF file and let everyone know what paper printer/plotter you are using there.

[maxim_k · Accepted solution]

Welcome to Autodesk Forums!

Hi Darcie,

I believe you have solid hatch with transparency applied to it and you save to PDF with "print transparency" option enabled.

Am I correct?

If yes, then AutoCAD creates raster image for transparency solid hatch in PDF file and Preview app prints such raster images inside PDF files as black areas - it is a bug in Preview app on Mac.

You can try to print from Adobe Reader instead of Preview, or convert PDF to JPEG format before printing from Preview app.

[Anonymous]

Thank you Maxim. That's exactly what I had done. That also makes sense as it wouldn't happen when i printed the pdf from a PC. Thanks again.