4-Color Printing (Full Color Digital Prints)
Four color process magnetic sign printing is used when the original artwork is created in raster based (bitmap) programs (Photoshop, CoralPaint, etc.). Typical examples of raster based artwork include color blends, gradation fades, photographs, complex images, rainbow effects or scanned images. This artwork is usually saved as .tif, .jpg, .bmp, .gif or psd. Artwork saved in programs such as Word, Excel, Powerpoint, Illustrator can be either raster artwork (4-color process printed) or vector artork (spot color printed), depending on the original artwork placed in the program.
4-Color Process defined
A raster or bitmap image is an image composed of a combination of small dots. Each dot is usually composed of one of four colors: Cyan (C), Magenta (M), Yellow (Y), and Black (K). These four colors, in different combinations, make up the majority of the visible color spectrum. For example, your inkjet printer at home, probably runs off of a CMYK (4-color process) system.
Since we print our process color magnetic signs utilizing a CMYK color profile, any art files that have an RGB color profile, will automatically be converted to a CMYK color format. This may cause a dramatic change in color to your original RGB file. It is highly recommended to convert any RGB color formatted files to CMYK, before submitting your artwork, and adjust the color accordingly to match your needs.
For lettering only magnetic signs, please refer to Spot Color magnetic sign printing page, where you will be able to obtain information on file formats, color choices and font styles.