Photoshop Portable Cs4 ((install))
This was the "killer feature" of CS4. It introduced fluid canvas rotation (using the R key or the Hand tool modifier). This allowed artists to rotate the canvas to find a comfortable drawing angle without actually rotating the image pixels. It also utilized GPU acceleration for smooth, flick-pan zooming.
: Adobe has shut down the original activation servers for CS4, meaning even legitimate copies can no longer be activated for regular use. 2. CS4 Technical Snapshot (2008) photoshop portable cs4