diff --git a/splash/Splash.cc b/splash/Splash.cc
index 047bbe8..e50c2a3 100644
--- a/splash/Splash.cc
+++ b/splash/Splash.cc
@@ -2265,7 +2265,8 @@ SplashError Splash::fillWithPattern(SplashPath *path, GBool eo,
     }
   }
 
-  xPath = new SplashXPath(path, state->matrix, state->flatness, gTrue);
+  xPath = new SplashXPath(path, state->matrix, state->flatness, gTrue, 
+    state->clip->getYMinI() == state->clip->getYMaxI() || state->clip->getXMinI() == state->clip->getXMaxI());
   if (vectorAntialias && !inShading) {
     xPath->aaScale();
   }
diff --git a/splash/SplashXPath.cc b/splash/SplashXPath.cc
index b82d355..9288e1e 100644
--- a/splash/SplashXPath.cc
+++ b/splash/SplashXPath.cc
@@ -66,7 +66,8 @@ inline void SplashXPath::transform(SplashCoord *matrix,
 //------------------------------------------------------------------------
 
 SplashXPath::SplashXPath(SplashPath *path, SplashCoord *matrix,
-			 SplashCoord flatness, GBool closeSubpaths) {
+			 SplashCoord flatness, GBool closeSubpaths,
+			 GBool adjustLines) {
   SplashPathHint *hint;
   SplashXPathPoint *pts;
   SplashXPathAdjust *adjusts, *adjust;
@@ -124,13 +125,27 @@ SplashXPath::SplashXPath(SplashPath *path, SplashCoord *matrix,
       // adj0=10.4, adj1=11.6 --> x0=10, x1=12), but it has the
       // benefit of making adjacent strokes/fills line up without any
       // gaps between them
-      x0 = splashRound(adj0);
-      x1 = splashRound(adj1);
-      if (x1 == x0) {
-	x1 = x1 + 1;
+      if (!adjustLines) {
+        x0 = splashRound(adj0);
+        x1 = splashRound(adj1);
+        if (x1 == x0) {
+	  x1 = x1 + 1;
+        }
+        adjusts[i].x0 = (SplashCoord)x0;
+        adjusts[i].x1 = (SplashCoord)x1 - 0.01;
+      } else {
+      // the ahead adjustments moves thin lines (clip rectangle with
+      // empty width or height) out of clip area, here we need
+      // a special adjustment:
+        x0 = splashFloor(adj0 + 0.1);
+        x1 = splashFloor(adj1 + 0.1);
+        adjusts[i].x0 = (SplashCoord)x0;
+        if (x1 == x0) {
+          adjusts[i].x1 = (SplashCoord)x1 + splashAASize / 2 - 0.01;
+        } else {
+          adjusts[i].x1 = (SplashCoord)x1 - 0.01;
+        }
       }
-      adjusts[i].x0 = (SplashCoord)x0;
-      adjusts[i].x1 = (SplashCoord)x1 - 0.01;
       adjusts[i].xm = (SplashCoord)0.5 * (adjusts[i].x0 + adjusts[i].x1);
       adjusts[i].firstPt = hint->firstPt;
       adjusts[i].lastPt = hint->lastPt;
diff --git a/splash/SplashXPath.h b/splash/SplashXPath.h
index db06978..3f73564 100644
--- a/splash/SplashXPath.h
+++ b/splash/SplashXPath.h
@@ -50,7 +50,7 @@ public:
   // space, via <matrix>.  If <closeSubpaths> is true, closes all open
   // subpaths.
   SplashXPath(SplashPath *path, SplashCoord *matrix,
-	      SplashCoord flatness, GBool closeSubpaths);
+	      SplashCoord flatness, GBool closeSubpaths, GBool adjustLines = gFalse);
 
   // Copy an expanded path.
   SplashXPath *copy() { return new SplashXPath(this); }