InDesign provides various ways for you to sample and redefine colors from the graphics you import into your document. Spot colors from placed PDF or EPS files and spot-color channels in Adobe Photoshop (PSD) and TIFF files appear as spot colors in the Swatches panel. You can apply these colors to objects in your document or convert them to process colors; however, you cannot redefine the color values or delete the imported swatches. If you delete the placed graphic, the colors remain but are converted to native InDesign colors, which can then be edited or deleted.