OT: PDF Compare

[Pat Christenson]

I have a client who's not happy with the reports they're getting the  
doc compare function in Acrobat. Among other problems, It marks  
unchanged links/xrefs as changes and is limited to 250 page documents.

Does anyone have any experience running other PDF compare tools or  
know of any I can research for this client?

Because this is off-topic, you may want to respond to me and not the  
list.

Thanks.

Pat Christenson