Adobe Systems Incorporated (pronounced /əˈdoʊbiː/ ə-DOE-bee) (NASDAQ: ADBE) is an American computer software company headquartered in San Jose, California, USA. The company has historically focused upon the creation of multimedia and creativity software products, with a more-recent foray towards rich Internet application software development.

In the mid-1980s, Adobe entered the consumer software market with Adobe Illustrator, a vector-based drawing program for the Apple Macintosh. Illustrator, which grew from the firm's in-house font-development software, helped popularize PostScript-enabled laser printers. Unlike MacDraw, then the standard Macintosh vector drawing program, Illustrator described shapes with more flexible Bézier curves, providing unprecedented accuracy. Font rendering in Illustrator, however, was left to the Macintosh's QuickDraw libraries and would not be superseded by a PostScript-like approach until Adobe released Adobe Type Manager.

In 1989, Adobe introduced what was to become its flagship product, Adobe Photoshop for the Macintosh. Stable and full-featured, Photoshop 1.0 was ably marketed by Adobe and soon dominated the market.

Adobe's products include:

• Desktop software, such as Adobe Photoshop (part of the Adobe Creative Suite) and Adobe Audition
• Server software, such as Adobe ColdFusion and Adobe LiveCycle
• Technologies, such as Portable Document Format (PDF), PDF's predecessor PostScript, and Flash
• Web hosted services as Adobe Kuler, Photoshop Express, and Acrobat.com
• Web design programs: Adobe Dreamweaver and Adobe GoLive
• Video editing and special effects: Adobe Premiere and Adobe After Effects