30327 IMAGE AND PDF CONVERTER API

Java API for converting FROM: .doc/.dot/.rtf/.xls TO: IMAGE (TIFF multipage) and then TO: PDF the original document must be converted to an image file (maybe tiff multipage), including a specific Watermark (on image) and then must convert this image to PDF and add PDF security. - The API must be platform independent. - It can use third companies' software or java API's, but these must be also platform independent or have version for different OS's. - Preferably, it must avoid serialization of the file in the filesystem. - The pdf must include security: (128 bits encryption, no changes allowed, no content copying or extraction) - Good performance is extremely important. A good option to use can be the OpenOffice API. Please make a brief tecnical description on bid.