Why do I have unwanted extra bytes at the beginning of image?

Question

Question:

I\'ve made a homepage for my brother, accessible here:
http://www.daniel-steiger.ch

It uses Microsoft ASP.NET MVC3 on Linux with mono 3, over

Answer 1

I don't recognize that Tools.Imaging.GetThumbnailStream() function, and neither does Google. Assuming that's your own code or a 3rd party library, I'd look there for the source of the strange bytestream.