Generate a bmp or jpg file with numbers

Question

Hello People,

I want to generate a jpg or bmp file with numbers like that:


I generate the numbers and I have them in an array.
This pic is a screenshot I made from the form (The numbers
are in Textboxes). The problem is: I have to print the numbers
on a card, and with a screenshot the resolution is not good
enough. Any ideas?? Thanks in advance. Dom