How do I convert PDF pages to multi-page TIFF?

Q: How do I convert PDF pages to multi-page TIFF?
I am using C# and PDFNet SDK for .NET.
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A:

Unlike PDF2Image SDK (www.pdftron.com/pdf2image), PDFNet SDK doesn't
have a 'built-in' method to export multipage TIF. Still using
'pdftron.PDF.PDFDraw.GetBitmap()' method you can obtain
'System.Drawing.Bitmap' which you can save to multipage TIF using
standard .NET Framework API (of course you can also use any other
third party imaging library).

The following links are some useful resources describing how to use GDI
+ to save multipage TIF.

http://www.bobpowell.net/generating_multipage_tiffs.htm