http://bugs.winehq.org/show_bug.cgi?id=12514
--- Comment #2 from foobard jens@porup.com 2008-04-11 18:44:05 --- You may be correct. I tested this with a jpeg image and the pdf is created successfully.
Is this still a bug? Perhaps Acrobat Pro relies on some sort of Windows feature for this and not MS Office.