Adobe Photoshop

Source Code

The source code of Adobe Photoshop v. 1.07 has been released by the Computer History Museum in Mountain View and can be downloaded at: Adobe Photoshop Source Code

Adobe Photoshop 1.07 splash screen

Adobe Photoshop 1.07 splash screen


  • Early versions of Photoshop (0.63 (beta), 1.0, 2.x, 3.0, 3.0.4, 3.0.5, 4.x, 5.x, 6.x) are available at WinWorld

Papers, Blog Posts and Websites


John Knoll “reenacts” a demo of Photoshop v. 1.0 in 2010

Startup Memories – The Beginning of Photoshop

The Beginning of Photoshop: Thomas Knoll, John Knoll & Russell Brown

Photoshop Magic: A lecture by digital artist and author Bert Monroy

Mastering the Pixel : 25 Years of Photoshop