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?".
Hello!
I've many problem to convert PDF in PNG transparency when PDF was in landscape mode or pdf file with semi transparency item.
(I think that it was a problem with the call of pngalpha printer by ImageMagick himself)
Solved by the use of GS before ImageMagick :
exec("gs -sDEVICE=pngalpha -sOutputFile=$jpg_saved -r72 $pdf");
exec("convert $jpg_saved_file -colorspace RGB $jpg_saved");