Hi,

There is lots of stuff available on internet to convert an image format and cropping using .NET,

Please see following link for Image Format Convertion,

http://www.codeproject.com/KB/GDI-plus/dotnet_convertimage.aspx

Please see following link for Imange Cropping

http://www.codeplex.com/webcropimage/Wiki/View.aspx?title=Home

Hope it will work for you,

Thank You

Muhammad Akhtar Shiekh