diff --git a/kivy/tools/texturecompress.py b/kivy/tools/texturecompress.py
index 16840fe0f..99a6176cb 100644
--- a/kivy/tools/texturecompress.py
+++ b/kivy/tools/texturecompress.py
@@ -204,12 +204,17 @@ class PvrtcTool(Tool):
         s2 = max(w2, h2)
         print('PVR need a square image, the texture will be {0}x{0}'.format(s2))
 
+        ext = self.source_fn.rsplit('.', 1)[-1]
+        tmpfile = '/tmp/ktexturecompress.{}'.format(ext)
+        image = image.resize((s2, s2))
+        image.save(tmpfile)
+
         # 4. invoke texture tool
         raw_tex_fn = self.tex_fn + '.raw'
         cmd = [self.texturetool]
         if self.options.mipmap:
             cmd += ['-m']
-        cmd += ['-e', 'PVRTC', '-o', raw_tex_fn, '-f', 'RAW', self.source_fn]
+        cmd += ['-e', 'PVRTC', '-o', raw_tex_fn, '-f', 'RAW', tmpfile]
         try:
             self.runcmd(cmd)
             with open(raw_tex_fn, 'rb') as fd: