How to crop into a new document with Photoshop?

Question

I have a very hughe psd file with lots of layers. I need a way to do like a "copy merged" feature but pasting the result with layers instead of a flatten image.

Or in order words like a crop but into a new document instead of croping the whole original psd.

EDIT: As many don't understand I will try to expand:

I only want a portion of the original psd. When you use Rectangular Marquee tool and select a portion of the psd, and then you click Edit -> Copy Merged , and then you click New file and paste you get a flatten image. I want the same but instead of a flatten image, I want the original layers of that portion I selected using marquee tool.

If that possible? A similar workaround I found is using the marquee tool, then click on Crop document. But my psd is so hughe that take minutes to crop it, and then I have to undo steps to get the original psd back.

UPDATE 2: When I do crop I get tons of popups saying the following: That's the reason I was wondering if there is a faster way.

I hope it's clear, Im not a designer guy.

Answer 1

1. Open the very big PSD file
2. Select the crop tool
3. Adjust to taste
4. Apply crop (Enter or Double Click inside the crop)
5. Save it as a new document so as to preserve the original (Just in case!)

UPDATE

Here is a different way of cropping, this may bypass the pop up question or may not:

1. Add a new blank layer on top of the layer stack (as if you don't have enough!) and target it
2. Select the area you want to crop to with the rectangular marquee tool
3. Press Ctrl+Shift+I to invert the selection
4. Fill the selected area on the blank layer with a color, say red
5. Go to Image/Trim and choose the top left (or a suitable side) pixel color

This will "trim" the image to leave the selected area remaining. As I said, I am not sure if you will still see the pop up or not. Try and see, and please let us know if it worked or not.

Answer 2

Your problem could be solved by placing the PSD as a Smart Object into another Photoshop document.

• Crop your image with the Crop tool - do not flatten the image.
• Save your PSD file, probably best to create a new file name, although it might not be necessary if you are using a newer version of Photoshop with the non-destructive Crop Tool.
• Then in the other Photoshop document, click File > Place, select the PSD you want to import, click on the canvas to place it, hit the enter key.

Now the object will be placed as a Smart Object.

You can edit the Smart Object by double clicking it in the layers panel, this will open the PSD with all the layers intact, should you wish to edit it.