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Photoshop CS5 - How to assign position and dimensions from one object to another?


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I am currently updating an old document that I don't recall how I created the first time around. What I would like to do is to take the size and position of an existing object that underwent a free transform when it was placed in the document originally, and perform the same transformation on the new object I am now adding to the document. I am replacing the old one and I want the new one to be identical in size and position to the original. How can I do this in Photoshop CS5?
 
Locate the center of the object with x and y guidelines. As you move the guides they display the X or Y position. Just pull you two guidelines an X and a Y to the center of your existing object. Make note of the positions in case they were to get moved. Hopefully this will get you there. Turn on Smart Guides also

I am currently updating an old document that I don't recall how I created the first time around. What I would like to do is to take the size and position of an existing object that underwent a free transform when it was placed in the document originally, and perform the same transformation on the new object I am now adding to the document. I am replacing the old one and I want the new one to be identical in size and position to the original. How can I do this in Photoshop CS5?
 
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To add to what Larry said, do the same for each of the corners of the bounding rectangle. That will get you closer than just locating the center.

Also, if there are any obvious straight edges in the original, and the new object, lay down some tilted guide lines on a temporary layer to mark out the angles they are at. That will get you even closer.

Another method is to put the new object in its own layer, reduce the opacity to about 50%, and then free transform it by eye so that it is in best registry with the object its replacing. This isn't a very technical approach, but it works quite well in practice.

T
 
Thanks guys. I ended up using a combination of suggestions. Basically by pressing ctrl-t to get the free transform info open on the old object I can read off the centre coordinates, the width and the height. I then free transform the replacement object to the same specifications. It turns out that there's a bunch of rounding in the numbers displayed, but by adjusting them a fraction of a %/pixel at a time I eventually got everything to match up. Problem solved.
 

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