I am making a website mock-up with photoshop and currently my image size is 1020x807. I am wanting to add a great deal more of height to the "canvas" so I can give example to a largely scrolling page. Maybe something like 1020x5000?

However, if I change the height of the image or canvas it will change all of my layers as well. What is the best way to do this without having to make a new document and spending all the time transferring my layers over?

To put it even more simply...Is there a way to enlarge the size of my document without effecting the layers?

Thanks in advance

2 Answers 2


Image > Canvas Size...

Simply enter the size you want, set the way you want the canvas to expand, and click OK.

enter image description here

Note: Canvas Size is not the same as Image Size. Canvas size changes your canvas without altering the size of anything else.


I'm not sure how to reduce the image size without resizing the layers, but just in case someone else isn't able to provide you with a more direct solution:

Couldn't you make a new document at the appropriate size, put all your layers + groups into one parent group in OldDocument, and then just transfer the parent-group over to NewDocument? Drag-and-drop the cursor in the center of your new document, and your layers will be centered relative to the new navigation-area size.

  • That did it. I thought I tried that and it didn't work. My bad :) Jul 30, 2014 at 0:52

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