transparency not coming through on pdf to jpg

[afonit]

When I convert a pdf to jpg (also tried png etc...) the transparency is disappearing as seen in the screenshot: (to the left is the pdf in illustrator, on the right is the jpg after being converted by imagemagick.

http://img12.imageshack.us/my.php?image=dataxd9.png


Illustrator has three settings:
Acrobat 4 (PDF 1.3)
Acrobat 5 (PDF 1.4)
Acrobat 6 (PDF 1.5)
Acrobat 7 (PDF 1.6)
Acrobat 8 (PDF 1.7)

This is what I have discovered - when illustrator saves it as pdf 1.3, then imagemagick preserves the transparency correctly, but for any of the other versions listed it does the white boxes.

is there a way to get image magick to work with pdf's 1.4 - 1.7? I ask this as the artists in the company use a lot of functionality that is not available in 1.3 so we cannot use that version.

[magick]

Post a URL to a 1.3 PDF and 1.4 PDF that illustrates the problem. We'll account for the differences and add a patch to ImageMagick if appropriate.

[afonit]

Post a URL to a 1.3 PDF and 1.4 PDF that illustrates the problem. We'll account for the differences and add a patch to ImageMagick if appropriate.

here you go:

http://www.mediafire.com/?sharekey=5610 ... 6e282a0ee8