novaPDF SDK 

novaPDF SDK is a PDF software development kit that can be used by software developers and programmers to include the ability to create PDF files in their own applications. Get the latest version from http://www.novapdf.com/pdf-sdk.php
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PDF4U Pro 

Create PDF files from any Windows application running on Windows NT(SP3+), Windows 2000, Windows XP and Windows Server 2003. The software installs itself as a print driver, all you have to do is to click "Print" from your application to create PDF.
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