C# GDI+ - Convert Bitonal TIFF to Grayscale Gif

[gcorgnet]

Hi all,

I have a set of Multipage Tiff documents that are to be sent to a web browser. So, I want to convert them to Gif (or Png) before sending them to the client. Those Tiff docs are bitonal (1bpp) with a 200dpi*200dpi resolution.
They don't display very well on the browser (I think resolution is too big and bitonal images are not nice to read anyway ...)

So I would like to be able to convert on-the-fly my docs to grayscale gif.

Could someone point me in the right direction ?

I have browsed through Bob powell's GDI+ FAQ but at no avail ...

Thanks,

Guillaume