diff --git a/src/windows/CameraProxy.js b/src/windows/CameraProxy.js
index 5ad9475..505d3d8 100644
--- a/src/windows/CameraProxy.js
+++ b/src/windows/CameraProxy.js
@@ -93,8 +93,10 @@ function resizeImage(successCallback, errorCallback, file, targetWidth, targetHe
             var image = new Image();
             image.src = imageData;
             image.onload = function() {
-                var imageWidth = targetWidth,
-                    imageHeight = targetHeight;
+                var ratio = Math.min(targetWidth / this.width, targetHeight / this.height);
+                var imageWidth = ratio * this.width;
+                var imageHeight = ratio * this.height;
+
                 var canvas = document.createElement('canvas');
                 var storageFileName;
 
@@ -134,8 +136,9 @@ function resizeImageBase64(successCallback, errorCallback, file, targetWidth, ta
         image.src = imageData;
 
         image.onload = function() {
-            var imageWidth = targetWidth,
-                imageHeight = targetHeight;
+            var ratio = Math.min(targetWidth / this.width, targetHeight / this.height);
+            var imageWidth = ratio * this.width;
+            var imageHeight = ratio * this.height;
             var canvas = document.createElement('canvas');
 
             canvas.width = imageWidth;