This means that any plug-ins you want to use in Photoshop CS6 must also be written for 64-bit operation, or they simply won’t work. 32-bit: In addition, Apple has been moving to a 64-bit architecture in OS X, and away from the older 32-bit architecture that almost all TWAIN drivers were written for.Īdobe Creative Suite 6 offers the first version of Photoshop that runs exclusively in 64-bit mode. Clearly, Adobe is also directing users away from TWAIN.Ħ4-bit vs. Photoshop Elements also has a TWAIN plug-in, but you’ll have to move it from the Optional Plug-ins folder to the Plug-ins folder. Photoshop CS6 supports both TWAIN and ImageKit drivers, but to use a TWAIN driver, you must download and install Adobe’s optional plug-in. Since Mac OS X 10.6, Apple has been encouraging developers to move away from TWAIN and instead use the ImageKit technology that is at the heart of Apple’s Image Capture utility. In most cases, it worked brilliantly – so brilliantly that people forgot about the aging TWAIN connector technology between their apps and their scanners. TWAIN was developed as a universal standard so that applications could access various manufacturers' scanner driver controls. TWAIN: Beginning in the early 1990s, Apple and Photoshop supported TWAIN plug-ins. There are several reasons for this breakdown, and several ways to deal with the consequences. After 20 years of “scanning into Photoshop,” the latest Macs, OS X, and Photoshop CS6 have made so many changes to their architecture that users of some older scanners – as well as current users of Apple's Mountain Lion (OS X 10.8) are finding it impossible to do this any longer. In those days, if you bought a scanner, you got Photoshop. In fact, one of the reasons Photoshop became the de facto image editor is that Adobe licensed it to be bundled with scanners throughout the late 1980s and early 1990s when designers and publishers were buying their first scanners. Using a desktop scanner to bring printed materials into Adobe Photoshop is as old as Photoshop itself.

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