diff --git a/splash/Splash.cc b/splash/Splash.cc
index 047bbe8..5402fdf 100644
--- a/splash/Splash.cc
+++ b/splash/Splash.cc
@@ -3573,26 +3573,26 @@ SplashError Splash::arbitraryTransformImage(SplashImageSource src, void *srcData
     t0 = imgCoordMungeUpper(mat[2] + mat[4]) - imgCoordMungeLower(mat[4]);
     if (splashAbs(mat[1]) >= 1) {
       th = imgCoordMungeUpper(mat[2]) - imgCoordMungeLower(mat[0] * mat[3] / mat[1]);
-	  if (th > t0) t0 = th;
+	  if (th > t0 && th < 10000) t0 = th;
     }
   } else {
     t0 = imgCoordMungeUpper(mat[4]) - imgCoordMungeLower(mat[2] + mat[4]);
     if (splashAbs(mat[1]) >= 1) {
       th = imgCoordMungeUpper(mat[0] * mat[3] / mat[1]) - imgCoordMungeLower(mat[2]);
-      if (th > t0) t0 = th;
+      if (th > t0 && th < 10000) t0 = th;
     }
   }
   if (mat[3] >= 0) {
     t1 = imgCoordMungeUpper(mat[3] + mat[5]) - imgCoordMungeLower(mat[5]);
     if (splashAbs(mat[0]) >= 1) {
       th = imgCoordMungeUpper(mat[3]) - imgCoordMungeLower(mat[1] * mat[2] / mat[0]);
-	  if (th > t1) t1 = th;
+	  if (th > t1 && th < 10000) t1 = th;
     }
   } else {
     t1 = imgCoordMungeUpper(mat[5]) - imgCoordMungeLower(mat[3] + mat[5]);
     if (splashAbs(mat[0]) >= 1) {
       th = imgCoordMungeUpper(mat[1] * mat[2] / mat[0]) - imgCoordMungeLower(mat[3]);
-	  if (th > t1) t1 = th;
+	  if (th > t1 && th < 10000) t1 = th;
     }
   }
   scaledHeight = t0 > t1 ? t0 : t1;