diff --git a/paste.py b/paste.py
new file mode 100755
index 0000000..d3bde59
--- /dev/null
+++ b/paste.py
@@ -0,0 +1,21 @@
+#!/usr/bin/env python
+from __future__ import division
+import os, sys
+from PIL import Image
+from PIL import ImageEnhance
+import argparse
+parser = argparse.ArgumentParser()
+parser.add_argument("source", type=str)
+parser.add_argument("watermark", type=str)
+args = parser.parse_args()
+
+infile = args.source
+watermark = args.watermark
+try:
+    im = Image.open(infile)
+    im_watermark = Image.open(watermark)
+    im = im.convert()
+    im.paste(im_watermark, (im.size[0] // 2 - im_watermark.size[0] // 2, im.size[1] // 2 - im_watermark.size[1] // 2))
+    im.save(infile, "JPEG", quality=100)
+except IOError:
+    print("cannot create thumbnail for '%s'" % infile)