I'm a new user and just created my first fillable form on Adobe Forms Central. I am using a Mac (10.8.5).
When I save the form as a PDF, some of the boxes (for single and multiple selection) appear with thicker/darker line weights than the other boxes.
The phenomenon appears to be random; about 1/3 of the boxes are thicker/darker.
I have attached a screen shot (below).
I would advise posting this to the Acrobat forum.
What you observed does happen at some zoom levels, it is an Acrobat issue. Try a different zoom level to see a different result. Do you see the inconsistancy viewing at 100%?
One quick note since users often use Preview on the Mac to view PDFs and Preview is not supported for FormsCentral PDFs, the viewer does need to be Adobe Reader or Acrobat. Are you using Adobe Reader (or Acrobat) to view the PDF?
Josh: I just played with the zoom. At 75% or lower, as well as 125% or higher, the issue disappears.
Using Preview, the issue does not appear.
I really appreciate the help.