February 4, 2011
To use the dimensions of one open image to crop another open image, select the open document with the desired crop (width, height, and resolution) and click the “front image” button in the Options bar. This will enter the height, width and resolution for the document in the Options bar. Then, switch to the document that needs to be cropped and drag out the crop tool. The aspect ration will be constrained while dragging the crop and, when applied, the image will be resized to the desired width, height and resolution.
February 3, 2011
The interpolation method that is used in Free Transform, the Crop Tool and Place Command can be set in the Preferences > General > Image Interpolation menu.
November 27, 2009
To help with the placement/alignment/scale of an object that is being “placed”, the (placed) layer’s opacity and blend mode can be modified in the layers panel. Note: a layer’s opacity, fill and blend mode can also be modified while being transformed (Edit > Free Transform).
November 26, 2009
When using the File > Place command (invoked from either Photoshop or Bridge) the placed document is automatically converted into a Smart Object. Not only does this work when placing images, but also logos/artwork from Illustrator into Photoshop.