While Photoshop doesn’t offer a dashed line option, such as that found in Illustrator’s Stroke palette, you can easily simulate them by editing a brush ...
If you own a newer slide scanner, you’ve probably heard of Applied Science Fiction, developers of Digital ICE, the fantastic scratch- and dust-removing software.
Spot colors can be used with CMYK or Multichannel documents intended for print to add additional colors, create “bump plates,” and to control varnishes.