I am trying to port my app in windows phone . i have to upload an image on server So it is in small Size For uploading i have done this thing in Widows Successfully but problem
Try to load your original image to WriteableBitmap object, then you can use SaveJpeg() extension method from System.Windows.Media.Imaging
namespace, to save new image with reduced size. For example :
.......
WriteableBitmap wb = new WriteableBitmap(bitmapImageObject);
wb.SaveJpeg(stream, 120, 160, 0, 100);
.......