 <p>Do not pretend the Isolated Storage as a SQL Server. There will be great performance difference. If you want to process too much data, send them to server.</p> <p>However, there is a method for getting a thumbnail. You can use it:</p> <p><a href="http://msdn.microsoft.com/en-us/library/system.drawing.image.getthumbnailimage.aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/system.drawing.image.getthumbnailimage.aspx</a></p> <p>Also, please check this answer:</p> <p><a href="http://stackoverflow.com/questions/2808887/create-thumbnail-image">Create thumbnail image</a></p>