Globally change font size for all layers

fontsize.py

@@ -0,0 +1,34 @@
+#!/usr/bin/env python
+
+from gimpfu import *
+
+def python_change_font_size(img, fontsize) :
+    pdb.gimp_image_undo_group_start(img)
+
+    for l in img.layers:
+        if not pdb.gimp_item_is_text_layer(l):
+            continue
+        # pdb.gimp_text_layer_set_font(l, font)
+	pdb.gimp_text_layer_set_font_size(l, fontsize, 0)
+
+    pdb.gimp_image_undo_group_end(img)
+
+register(
+       	"python_fu_change_font_size",
+	"Change every text layer in an image to a new font size",
+	"Change every text layer in an image to a new font size",
+	"Akkana Peck",
+	"Akkana Peck",
+	"2016",
+	"Change Font Sizes...",
+	"*",
+	[
+          (PF_IMAGE, "image", "Input image", None),
+          (PF_SPINNER, "fontsize", "New Font Size",
+           14, (1, 50, 1))
+	],
+	[],
+	python_change_font_size,
+        menu="<Image>/Filters/Generic")
+
+main()