When you view large images, Internet Explorer’s default settings make the browser resize the image to fit within the browser window. If you would like to see the image in its original size instead, you can disable this functionality.
Steps to follow
1. Open Internet Explorer.
3. Click Tools and select Internet Options.
4. Select the Advanced tab.
5. Scroll to the Multimedia section.
6. Uncheck the Enable automatic image resizing checkbox.
7. Click the OK button.