title: How can I crop image without changing its resolution in C#.Net?
body: <p>I made small program to divide large pictures and take part of them.
  When i import image that made by "Microsoft Paint" this image is "96 dpi" so my program doing well.</p>
  
  <p>But I've pictures that made by Photoshop its resolution is 71.6 dpi when i crop these pictures the new cropped picture take 96 dpi resolution so the size is deference between them.</p>
  
  <h2><strong>I want to crop the picture with keeping its resolution as it.</strong></h2>
  
  <p>.</p>
  
  <p>thank you very much</p>