Batch layer export for GIMP

batch_save.py

# -*- coding: utf8 -*-
#!/usr/bin/env python2
"""Exports every layer into a separate PNG, adds the same background to each
layer. Useful e.g. for creating flashcards with many things highlighted in one
image.

Installation: put into ~/.gimp-2.8/plug-ins (or similar)."""

from gimpfu import *
import gimp as g


def batch_save(img, layer, dir):
    for layer in img.layers:
        if (layer.name == "Background"):
            background = layer

        layer.visible = 2
    newimage = g.Image(layer.width, layer.height, RGB)

    for layer in img.layers:
        if layer.name == "Background":
            continue

        fn = dir + "/" + layer.name + ".png"
        ll = pdb.gimp_layer_new_from_drawable(layer, newimage)
        newimage.add_layer(pdb.gimp_layer_new_from_drawable(background, newimage))
        newimage.add_layer(ll)
        flattened = i.flatten()
        pdb.file_png_save(newimage, flattened, fn, fn, False, 9, True, True, True, True, True)
        i.remove_layer(flattened)

register(
        "python_fu_batch_save",
        "Export every layer separately as a png with background included",
        "Export every layer separately as a png with background included",
        "Richard Hladík",
        "Richard Hladík", "2017", "<Image>/Filters/Batch/Batch save",
        "*", [(PF_STRING, "dir", "Destination directory", "")], 
        [],
        batch_save)

main()