Take Altium Designer 6.9 for example:
1. Click Dxp→run Script.
2. Click Browse to open: ad's installation directory under \altium Designer 6\examples\scripts\delphiscript scripts\pcb\pcb Logo Creator\ PCBLOGOCREATOR.PRJSCR file
3. Select Runconverterscript, then click OK.
4. load the BMP file and select which layer you want to put on the PCB, click OK, and that's good.
Note: the loaded picture must be black and white type BMP format file, if your picture is other format, and is not black and white type, you need to convert a piece. It's really simple, not even Photoshop, just open the drawing tool that comes with your Windows system, where you can start drawing with accessories, starting with . Then open the image that needs to be converted, click Save As, save type is selected as monochrome bitmap is OK, such a picture is converted to black and white type BMP format file.
Ways to add images or logos to Altium Designer's PCB