Photoshop 1.0 source code available

Photoshop makes history.

With Adobe’s permission, Computer History Museum makes the source code of Adobe Photoshop 1.0 available for download.

Just before I give you the link to download Photoshop 1, let me give you a quick story of Photoshop to read.

I often tell the story of the beginnings of Photoshop to delegates on my Photoshop courses, so here’s a short version in some points:

  • Thomas Knoll, a PhD student in computer vision at the University of Michigan, had written a program in 1987 to display and modify digital images.
  • In the summer of 1988 the product was renamed to “Photoshop” and search for a company to distribute it began.
  • About 200 copies of version 0.87 were bundled by slide scanner manufacturer Barneyscan as “Barneyscan XP”.
  • The fate of Photoshop was sealed when Adobe, encouraged by its art director Russell Brown, decided to buy a license to distribute an enhanced version of Photoshop.
  • Over the next ten years, more than 3 million copies of Photoshop were sold.
  • The first version of Photoshop was written primarily in Pascal for Macintosh, with some machine language for the underlying Motorola 68000 microprocessor where execution efficiency was important.

So, with permission from Adobe, Computer History Museum makes available, for non-commercial use, the source code to the 1990 version 1.0.1 of Photoshop.

Here’s the link for you:

Photoshop 1.0.1 source code download.

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