Adobe Photoshop is a graphics editing program developed and published by Adobe Systems and is one of the most powerful image modification programs on the market today.
Since November 1992, with the release of Adobe Photoshop 2.5, Photoshop supported both Macintosh and Microsoft windows, and in November 1993, Adobe Photoshop 2.5 was also made available for IRIX and Solaris
After Adobe Photoshop 2.0
Adobe Photoshop 3.0 first came up with the concept of layers and tabbed palettes in September 1994, and after two years Adobe Photoshop 4.0 released with macros and the extended layer functions.
Adobe Photoshop 5.0, released in May 1998, came up with the History Palette which supports multiple undo and strong color management system and web functionality.
3. After Adobe Photoshop 5.0~7.0
In September 2000, Adobe Photoshop 6.0 released with updated user interface, vector shapes function and Blending Options dialog.
And with Adobe Photoshop 7.0, in March 2002, the text was made fully vector and it equipped with new painting engine
Adobe Photoshop CS versions
Adobe Photoshop CS2 in April 2005, and Adobe Photoshop CS3 in April 2007 also came with many new changes like revised user interface, Camera Raw 3.x, etc.
And today the latest version is Adobe Photoshop CS4, which is released in October 2008, with much great functionality.
Features Photoshop has strong ties with other Adobe software for media editing, animation, and authoring.
2. Photoshop CS3
Photoshop CS3 is marketed with three main components of improvement over previous versions: Work more productively, edit with unrivalled power, and composite with breakthrough tools.
New features propagating productivity include streamlined interface, improved Camera Raw, better control over print options, enhanced PDF support, and better management with Adobe Bridge .
Editing tools new to CS3 are the Clone Source palette and nondestructive Smart Filters, and other features such as the Brightness/Contrast adjustment and Vanishing Point module were enhanced.
Photoshop CS3 & CS4
3. Photoshop CS4
Photoshop's popularity means that the .PSD format is widely used, and it is supported to some extent by most competing software.
The .PSD file format can be exported to and from Adobe Illustrator , Adobe Premiere Pro , and After Effects , to make professional standard DVDs and provide non-linear editing and special effects services, such as backgrounds, textures, and so on, for television, film, and the Web.
Photoshop is a pixel-based image editor, unlike Adobe Illustrator , which is a vector-based image editor.
Photoshop CS3 & CS4
Photoshop is the current market leader for commercial bitmap and image manipulation software, and is the flagship product of Adobe Systems.
Photoshop has strong ties with other Adobe software for media editing, animation, and authoring.
Photoshop functionality can be extended by add-on programs called Photoshop plugins which act like mini-editors that modify the image.
A more user-friendly interface and new tools such as the "red-eye" reduction brush were aimed firmly at the more casual image editor.