Questions and postings pertaining to the usage of ImageMagick regardless of the interface. This includes the command-line utilities, as well as the C and C++ APIs. Usage questions are like "How do I use ImageMagick to create drop shadows?".
Thanks, this works for the most PDF-Files i've tried. But there is one PDF that i can't extract. The resulting Images consists of transparent background only - that means there is no text or something in the image and also no white background.
Without an example PDF that fails, it will be hard to tell you what the problem might be? Can create or modify your PDF so that it is not proprietary. Or can you send the PDF to the IM developers in a private email for them to test.
I do not think -antialias is doing anything in your command.