http://www.adobe.com/misc/trade.htmlProper use of the Photoshop trademark
Trademarks help protect corporate and product identity, and Photoshop is one of Adobe's most valuable trademarks. By following the below guidelines, you can help Adobe protect the Photoshop brand name.
The Photoshop trademark must never be used as a common verb or as a noun. The Photoshop trademark should always be capitalized and should never be used in possessive form, or as a slang term. It should be used as an adjective to describe the product, and should never be used in abbreviated form. The following examples illustrate these rules:
Trademarks are not verbs.
CORRECT: The image was enhanced using Adobe® Photoshop® software.
INCORRECT: The image was photoshopped.
Trademarks are not nouns.
CORRECT: The image pokes fun at the Senator.
INCORRECT: The photoshop pokes fun at the Senator.
Always capitalize and use trademarks in their correct form.
CORRECT: The image was enhanced with Adobe® Photoshop® Elements software.
INCORRECT: The image was photoshopped.
INCORRECT: The image was Photoshopped.
INCORRECT: The image was Adobe® Photoshopped.
Trademarks must never be used as slang terms.
CORRECT: Those who use Adobe® Photoshop® software to manipulate images as a hobby see their work as an art form.
INCORRECT: A photoshopper sees his hobby as an art form.
INCORRECT: My hobby is photoshopping.
Trademarks must never be used in possessive form.
CORRECT: The new features in Adobe® Photoshop® software are impressive.
INCORRECT: Photoshop's features are impressive.
Trademarks are proper adjectives and should be followed by the generic terms they describe.
CORRECT: The image was manipulated using Adobe® Photoshop® software.
INCORRECT: The image was manipulated using Photoshop.
Trademarks must never be abbreviated.
CORRECT: Take a look at the new features in Adobe® Photoshop® software.
INCORRECT: Take a look at the new features in PS.
The trademark owner should be identified whenever possible.
Adobe and Photoshop are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States and/or other countries.