Pixelmator, the Lithuania-based firm that makes popular Mac-based photo editing tools, has agreed to be acquired by Apple. The company says that, pending regulatory approval, there will be "no material changes to the Pixelmator Pro, Pixelmator for iOS, and Photomator apps at this time," but to "Stay tuned for exciting updates to come." The Pixelmator team, now 17 years old, states that its staff will join Apple.