How do I change the resolution on an image?

Once the image is open in Pixlr, you can save it without making any changes. This will automatically change your DPI to 72 which is the standard for websites and computer monitors. To change the resolution of your image to 72DPI, follow the steps listed below.

1.) Click on Tools | Library from the navigation bar
2.) Browse your mouse over the image and click on the pencil that appears in the lower
     right corner
3.) When Pixlr launches, click Save in the top right
4.) Choose to Overwrite the image on the following page