How to add a logo into the gerber file?

I am an EE engineer, but how to add a logo into the gerber file, as the customer wanted?

PADS 2007, cam350 is the tools I am using. Luckily small googling solved the problem.

Step 1

Download Bmp2asc.exe to generate the .asc file for PADS layout to import. Download link

The original logo image should be reversed colored, which means your background be black (which means transparent), the white color is the logo pattern (which means the color that you can see). It also should be black-white color based.

Command usage: bmp2asc.exe inputfile outputfile line-width num-of-layer-in-PADS-layout x-offset y-offset

For example: bmp2asc.exe a.bmp a.asc 2 26 0 0

Step 2

Generate the black-white colored bmp image using windows painter.

Step 3

Import .asc into the layout, move it to the proper place. Done.