If you are using PowerPoint to create presentations that you plan to publish for the Internet, you may have already noticed its lack of support for measurements using pixels. This is because the image size in pixels will render to different sizes on different output devices depending on the resolution.

Since I am using PowerPoint to create presentations to be published using Articulate Presenter, I know that the output resolution I want is 72 dpi and the default PowerPoint slide will end up being 720 x 540 pixels in Articulate. So I used Photoshop to create a PNG file with those dimensions and a grid as explained in this screencast to import into my PowerPoint file. If you would like to use my PNG file in your development process, just right-click on the image below and save it to your computer.