>Actually I can copy the graph on my clipboard and paste them in a Word document using the "PasteAndFormat" or "PasteSpecial" methods but I can't manage the image I pasted. I don't know how to move it or resize it in Word.
>I need to print the graph on a paper having a background picture and I don't know how to do it in excel.

It looks like you were asleep... did you see message #1277372 ?