diff --git a/android/src/main/java/com/rssignaturecapture/RSSignatureCaptureContextModule.java b/android/src/main/java/com/rssignaturecapture/RSSignatureCaptureContextModule.java
old mode 100644
new mode 100755
diff --git a/android/src/main/java/com/rssignaturecapture/RSSignatureCaptureMainView.java b/android/src/main/java/com/rssignaturecapture/RSSignatureCaptureMainView.java
old mode 100644
new mode 100755
index 152255ab..26a661a3
--- a/android/src/main/java/com/rssignaturecapture/RSSignatureCaptureMainView.java
+++ b/android/src/main/java/com/rssignaturecapture/RSSignatureCaptureMainView.java
@@ -1,5 +1,6 @@
 package com.rssignaturecapture;
 
+import android.graphics.Matrix;
 import android.util.Log;
 import android.view.ViewGroup;
 import com.facebook.react.modules.core.DeviceEventManagerModule;
@@ -197,8 +198,17 @@ public Bitmap getResizedBitmap(Bitmap image) {
       height = maxSize;
       width = (int) (height * bitmapRatio);
     }
-
-    return Bitmap.createScaledBitmap(image, width, height, true);
+    Bitmap resizedBitmap = Bitmap.createScaledBitmap(image, width, height, true);
+
+    if (this.signatureView.getRotateClockwise()){
+      Matrix matrix = new Matrix();
+      // 正数顺时针,负数逆时针
+      matrix.postRotate(-90);
+      Bitmap rotatedBitmap = Bitmap.createBitmap(resizedBitmap, 0, 0, resizedBitmap.getWidth(), resizedBitmap.getHeight(), matrix, true);
+      return rotatedBitmap;
+    }else{
+      return resizedBitmap;
+    }
   }
 
 
diff --git a/android/src/main/java/com/rssignaturecapture/RSSignatureCapturePackage.java b/android/src/main/java/com/rssignaturecapture/RSSignatureCapturePackage.java
old mode 100644
new mode 100755
diff --git a/android/src/main/java/com/rssignaturecapture/RSSignatureCaptureView.java b/android/src/main/java/com/rssignaturecapture/RSSignatureCaptureView.java
old mode 100644
new mode 100755
index 37c1dad3..10e3e75d
--- a/android/src/main/java/com/rssignaturecapture/RSSignatureCaptureView.java
+++ b/android/src/main/java/com/rssignaturecapture/RSSignatureCaptureView.java
@@ -53,6 +53,7 @@ public class RSSignatureCaptureView extends View {
 	private boolean dragged = false;
 	private boolean multipleTouchDragged = false;
 	private int SCROLL_THRESHOLD = 5;
+	private boolean rotateClockwise = false;
 
 	public interface SignatureCallback {
 		void onDragged();
@@ -214,6 +215,16 @@ private float strokeWidth(float velocity) {
 		return Math.max(mMaxWidth / (velocity + 1), mMinWidth);
 	}
 
+	public void setRotateClockWise(boolean newRotateClockwise){
+		 rotateClockwise = newRotateClockwise;
+	}
+
+  public boolean getRotateClockwise(){
+    return  rotateClockwise;
+  }
+
+
+
 	private ControlTimedPoints calculateCurveControlPoints(TimedPoint s1, TimedPoint s2, TimedPoint s3) {
 		float dx1 = s1.x - s2.x;
 		float dy1 = s1.y - s2.y;
diff --git a/android/src/main/java/com/rssignaturecapture/RSSignatureCaptureViewManager.java b/android/src/main/java/com/rssignaturecapture/RSSignatureCaptureViewManager.java
old mode 100644
new mode 100755
index 275d51a2..733e8d18
--- a/android/src/main/java/com/rssignaturecapture/RSSignatureCaptureViewManager.java
+++ b/android/src/main/java/com/rssignaturecapture/RSSignatureCaptureViewManager.java
@@ -26,6 +26,7 @@ public class RSSignatureCaptureViewManager extends ViewGroupManager<RSSignatureC
 	public static final String PROPS_MAX_STROKE_WIDTH="maxStrokeWidth";
 	public static final String PROPS_STROKE_COLOR="strokeColor";
 	public static final String PROPS_BACKGROUND_COLOR="backgroundColor";
+	public static final String PROPS_ROTATE_CLOCK_WISE = "rotateClockwise";
 
 	public static final int COMMAND_SAVE_IMAGE = 1;
 	public static final int COMMAND_RESET_IMAGE = 2;
@@ -114,6 +115,14 @@ public void setPropsBackgroundColor(RSSignatureCaptureMainView view, @Nullable S
 		}
 	}
 
+	@ReactProp(name = PROPS_ROTATE_CLOCK_WISE)
+	public void setRotateClockWise(RSSignatureCaptureMainView view, @Nullable boolean rotateClockwise){
+		Log.d("setRotateClockWise:", ""+rotateClockwise);
+		if (view != null){
+			view.getSignatureView().setRotateClockWise(rotateClockwise);
+		}
+	}
+
 	@Override
 	public RSSignatureCaptureMainView createViewInstance(ThemedReactContext context) {
 		Log.d("React"," View manager createViewInstance:");
diff --git a/android/src/main/java/com/rssignaturecapture/utils/Bezier.java b/android/src/main/java/com/rssignaturecapture/utils/Bezier.java
old mode 100644
new mode 100755
diff --git a/android/src/main/java/com/rssignaturecapture/utils/ControlTimedPoints.java b/android/src/main/java/com/rssignaturecapture/utils/ControlTimedPoints.java
old mode 100644
new mode 100755
diff --git a/android/src/main/java/com/rssignaturecapture/utils/TimedPoint.java b/android/src/main/java/com/rssignaturecapture/utils/TimedPoint.java
old mode 100644
new mode 100755
diff --git a/ios/PPSSignatureView.h b/ios/PPSSignatureView.h
index c238b463..070a0759 100644
--- a/ios/PPSSignatureView.h
+++ b/ios/PPSSignatureView.h
@@ -6,6 +6,7 @@
 @interface PPSSignatureView : GLKView
 
 @property (assign, nonatomic) UIColor *strokeColor;
+@property (assign, nonatomic) UIColor *backgroundColor;
 @property (assign, nonatomic) BOOL hasSignature;
 @property (strong, nonatomic) UIImage *signatureImage;
 @property (nonatomic, strong) RSSignatureViewManager *manager;
diff --git a/ios/RSSignatureView.m b/ios/RSSignatureView.m
index 501c7e13..f92459fd 100644
--- a/ios/RSSignatureView.m
+++ b/ios/RSSignatureView.m
@@ -187,10 +187,16 @@ - (void)setShowTitleLabel:(BOOL)showTitleLabel {
 
 - (void)setBackgroundColor:(UIColor*)backgroundColor {
 	_backgroundColor = backgroundColor;
+	if (sign){
+		sign.backgroundColor = backgroundColor;
+	}
 }
 
 - (void)setStrokeColor:(UIColor*)strokeColor {
 	_strokeColor = strokeColor;
+	if (sign){
+		sign.strokeColor = strokeColor;
+	}
 }
 
 -(void) onSaveButtonPressed {