change transparent object or text into white color within PDF's

hi all,

I have about 700 PDF’s in which some objects and/or text is used in a color tranparent in stead of white. How can I change those elements automatically by means of an Applescript or a kindlike tool?

grtz

Model: MacbookPro
Browser: Safari 523.12.2
Operating System: Mac OS X (10.5)

The latest version of Acrobat has some ability to perform fix ups you may want to take a look into that else you could be looking at something like Pitstop Pro.