How to create a layered PSD file from command line?

Question

I need to create a layered PSD file with ImageMagick or any other command-line tool available on Linux platform. Since I need to do this on Linux server, I

Answer 1

I agree with Jon Galloway, the Gimp console is a better choice. Here is my script:

(define (pngtopsd width height png-paths psd-path)
(define (add-layers image png-paths) 
    (if (null? png-paths) 0 
        (let* 
            ((png (car png-paths))
            (new-layer (car (gimp-file-load-layer 0 image (car png)))))

            (gimp-image-insert-layer image new-layer 0 -1)
            (gimp-item-transform-2d new-layer 0 0 1 1 (cadr png) (caddr png) (caffffdr png))
            (add-layers image (cdr png-paths))
        )
    ))

(let* 
    ((png (car png-paths))
    (image (car (gimp-file-load 1 (car png) (car png))))
    (drawable (car (gimp-image-get-active-layer image))))

    (gimp-image-resize image width height 0 0)
    (gimp-item-transform-2d drawable 0 0 1 1 (cadr png) (caddr png) (caffffdr png))       
    (add-layers image (cdr png-paths))
    (file-psd-save 0 image drawable psd-path psd-path 1 0)
    (gimp-image-delete image)
))

You just need put this script into file with name "pngtopsd.scm" inside your gimp "script" directory ("c:\Program Files\GIMP 2\share\gimp\2.0\scripts\" for Windows) and you can create layered PSD from list of PNG pictures with transformation (translation or rotation) of each layer. Usage sample:

gimp-console-2.8.exe -i -b              ^
  "(pngtopsd (list                      ^
   (list \"c:/../1.png\" 0 500 500)     ^
   (list \"c:/.../2.png\" 0.7 200 1000) ^
   (list \"c:/.../3.jpg\" -0.5 1000 0)) ^
   \"c:/.../result.psd\")"

There (list \"c:/.../2.png\" 0.7 200 1000) means:

• 0.7 is the rotation angle of picture (in radians)
• 200 1000 is x and y shift on an image