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Two programs were dropped from the CS4 line-up:, a vector keying application which utilizes image analysis technology to produce high quality effects in less than ideal lighting environments and provides keying of a subject into a virtual 3D environment through virtual set technology, and Adobe Stock Photos. In early testing of 64-bit support in Adobe Photoshop CS4, overall performance gains ranged from 8% to 12%, due to the fact that 64-bit applications could address larger amounts of memory and thus resulted in less file swapping - one of the biggest factors that can affect data processing speed. However, there were no 64-bit versions of CS4 available for. Although they were not natively 64-bit applications, Adobe After Effects CS4 and Adobe Premiere Pro CS4 had been optimized for 64-bit computers. On, Adobe Photoshop CS4 ran natively as a application.
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