PDF print driver

We need to get a printer driver developed for Mac OS X and Windows (2000|XP|Vista) that behaves as a normal printer for the user but generates a PDF-file. The file should then be encrypted and sent to our central server. ## Deliverables We need to get a printer driver developed for Mac OS X and Windows (2000|XP|Vista) that behaves as a normal printer for the user but generates a PDF-file. The file should then be encrypted and sent to our central server. After the upload has started, a URL that is? also? received from the server should be opened in a web browser. Some problems to take in consideration: * The PDF-file should be generated with high quality and accuracy. We can't accept occasionally deviation from the original. * The installation must be simple for the user and the download size should be kept low. E.g. it's desirable not to force the user to manually install Adobe Reader to get access to Adobe Distiller. Nice to have: * Use generic encryption (e.g., PGP) instead of the built in encryption in PDF. * Render the first page of the document as an image file (JPEG/PNG) and upload that file first. * Use the local print spool as buffer when no internet connection exists. * Use incremental upload when the internet connection is? only? available once in a while. * Support for older Windows versions (Windows 98) Please give us an offer even if you are only willing to developer for one of the two OS.