--- a/utils/HtmlOutputDev.cc
+++ b/utils/HtmlOutputDev.cc
@@ -1420,7 +1420,8 @@ void HtmlOutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
   /*if( !globalParams->getErrQuiet() )
     printf("image stream of kind %d\n", str->getKind());*/
   // dump JPEG file
-  if (dumpJPEG && str->getKind() == strDCT) {
+  if (dumpJPEG && str->getKind() == strDCT && (colorMap->getNumPixelComps() == 1 ||
+	  colorMap->getNumPixelComps() == 3) && !inlineImg) {
     drawJpegImage(state, str);
   }
   else {