One of PowerPoint’s greatest qualities is that you can get all sorts of content from disparate sources and add them all within one presentation to create a unified document. Pictures are one of the most important content types you add on your slides. However, each picture you insert may have different resolutions, and thus even though you may have sized your picture to look like a small postage stamp on your slide, it may be increasing your file size by several megabytes.
Learn how to set document resolution in PowerPoint 2016 for Windows.

