Legacy ImageMagick Discussions Archive

Consider the following conversion from PDF to PNG:

Source PDF: http://www.vanr.nl/ImageMagick/test.pdf
Result: Unexpected borders or "nasty edges" (as I call them) appear between the white circle and the background. There are no such edges between the circle and the white square located behind the circle:



The "nasty edges" disappear when running the same code extended with the option...
...removing all anti-aliasing. Result:



Question: How can "nasty edges" be removed without removing anti-aliasing? I am a beginner at IM.
I searched, but found no solution. Sorry about the big images: I cannot get the BBCode to scale them down.

Version: 7.0.8-2 Q16 x64 2018-06-18

This command works fine for me on IM 7.0.8.2 Q16 Mac OSX using Ghostscript 9.23. Perhaps you need to upgrade ghostscript.
What is your version of Ghostscript?

Note that in IM 7, you should use magick mogrify, not mogrify. If you use the latter, you are likely getting a result from IM 6.

See http://imagemagick.org/script/porting.php#cli

Updating from GhostScript v9.20 to v9.23 solved this issue:



@fmw42: You have been very helpful, thank you very very much!! Also thanks for the note.