If you purchased a license of Win2PDF before October 2009, you can upgrade to Win2PDF 3.5 for free:
For Desktops and Laptops using Windows 7, Windows Vista, and Windows XP.
Windows 8 and Windows 10 not supported.
For Servers using Windows Server 2008 (+R2), and Windows Server 2003.
Windows Server 2012, Server 2016, and Server 2019 not supported.
For upgrading an existing Win2PDF Pro 3.5 or lower install
*You must accept the following license agreement before installing Win2PDF.
Win2PDF 7 users can download Win2PDF 10 for free.
To upgrade to Win2PDF 10 from Win2PDF 3.5 or below, you need to purchase a Win2PDF 10 license. Win2PDF 10 fully supports Windows 10, and it includes additional file save formats, including PDF/A, JPEG, TIFF, GIF, PNG, and Microsoft's XPS file formats.