You could try one of these:
http://www.nitropdf.com/help/delete_pdf_images.htm
http://stackoverflow.com/questions/6...t-only-in-java
http://stackoverflow.com/questions/6...mages-from-pdf
http://www.aspose.com/docs/display/p...m+the+PDF+File
With
pdftk you can uncompress the pdf, leaving you with a text file that you can edit if you can understand the language... it should be possible to remove the images there, or make them transparent, or move them out of the page...