diff --git a/transformations/src/main/java/jp/wasabeef/glide/transformations/BlurTransformation.java b/transformations/src/main/java/jp/wasabeef/glide/transformations/BlurTransformation.java
index 11d4a12..d5daabd 100644
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/BlurTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/BlurTransformation.java
@@ -24,8 +24,6 @@ import com.bumptech.glide.load.resource.bitmap.BitmapResource;
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
-import android.graphics.Paint;
-import android.graphics.Rect;
 import android.support.v8.renderscript.Allocation;
 import android.support.v8.renderscript.RenderScript;
 import android.support.v8.renderscript.ScriptIntrinsicBlur;
@@ -74,7 +72,6 @@ public class BlurTransformation implements Transformation<Bitmap> {
         blur.forEach(overlayAlloc);
         overlayAlloc.copyTo(bitmap);
 
-        source.recycle();
         rs.destroy();
 
         return BitmapResource.obtain(bitmap, mBitmapPool);
diff --git a/transformations/src/main/java/jp/wasabeef/glide/transformations/ColorFilterTransformation.java b/transformations/src/main/java/jp/wasabeef/glide/transformations/ColorFilterTransformation.java
index 3e8ae59..f82936c 100644
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/ColorFilterTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/ColorFilterTransformation.java
@@ -58,8 +58,6 @@ public class ColorFilterTransformation implements Transformation<Bitmap> {
         paint.setColorFilter(new PorterDuffColorFilter(mColor, PorterDuff.Mode.SRC_ATOP));
         canvas.drawBitmap(source, 0, 0, paint);
 
-        source.recycle();
-
         return BitmapResource.obtain(bitmap, mBitmapPool);
     }
 
diff --git a/transformations/src/main/java/jp/wasabeef/glide/transformations/CropCircleTransformation.java b/transformations/src/main/java/jp/wasabeef/glide/transformations/CropCircleTransformation.java
index c5c440d..5d61220 100644
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/CropCircleTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/CropCircleTransformation.java
@@ -63,8 +63,6 @@ public class CropCircleTransformation implements Transformation<Bitmap> {
         float r = size / 2f;
         canvas.drawCircle(r, r, r, paint);
 
-        source.recycle();
-
         return BitmapResource.obtain(bitmap, mBitmapPool);
     }
 
diff --git a/transformations/src/main/java/jp/wasabeef/glide/transformations/CropSquareTransformation.java b/transformations/src/main/java/jp/wasabeef/glide/transformations/CropSquareTransformation.java
index 5c1c87f..21a682b 100644
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/CropSquareTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/CropSquareTransformation.java
@@ -48,10 +48,6 @@ public class CropSquareTransformation implements Transformation<Bitmap> {
             bitmap = Bitmap.createBitmap(source, mWidth, mHeight, size, size);
         }
 
-        if (bitmap != source) {
-            source.recycle();
-        }
-
         return BitmapResource.obtain(bitmap, mBitmapPool);
     }
 
diff --git a/transformations/src/main/java/jp/wasabeef/glide/transformations/CropTransformation.java b/transformations/src/main/java/jp/wasabeef/glide/transformations/CropTransformation.java
index 747e564..4b1e235 100644
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/CropTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/CropTransformation.java
@@ -71,8 +71,6 @@ public class CropTransformation implements Transformation<Bitmap> {
         Canvas canvas = new Canvas(bitmap);
         canvas.drawBitmap(source, null, targetRect, null);
 
-        source.recycle();
-
         return BitmapResource.obtain(bitmap, mBitmapPool);
     }
 
diff --git a/transformations/src/main/java/jp/wasabeef/glide/transformations/GrayscaleTransformation.java b/transformations/src/main/java/jp/wasabeef/glide/transformations/GrayscaleTransformation.java
index d016bba..f2edd64 100644
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/GrayscaleTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/GrayscaleTransformation.java
@@ -56,8 +56,6 @@ public class GrayscaleTransformation implements Transformation<Bitmap> {
         paint.setColorFilter(new ColorMatrixColorFilter(saturation));
         canvas.drawBitmap(source, 0, 0, paint);
 
-        source.recycle();
-
         return BitmapResource.obtain(bitmap, mBitmapPool);
     }
 
diff --git a/transformations/src/main/java/jp/wasabeef/glide/transformations/RoundedCornersTransformation.java b/transformations/src/main/java/jp/wasabeef/glide/transformations/RoundedCornersTransformation.java
index 58fd9fb..6c50d3b 100644
--- a/transformations/src/main/java/jp/wasabeef/glide/transformations/RoundedCornersTransformation.java
+++ b/transformations/src/main/java/jp/wasabeef/glide/transformations/RoundedCornersTransformation.java
@@ -62,8 +62,6 @@ public class RoundedCornersTransformation implements Transformation<Bitmap> {
         canvas.drawRoundRect(new RectF(margin, margin, width - margin, height - margin),
                 radius, radius, paint);
 
-        source.recycle();
-
         return BitmapResource.obtain(bitmap, mBitmapPool);
     }