Optimize Word and Excel images for 150 dots per inch (DPI). In an earlier post I covered how you can shrink your PowerPoint files using PowerPoint tools , which mentioned that specialized software can do a better job of shrinking files depending on your needs. But flattening the spreadsheet turns it into an image, so you can’t edit it.

We know PPT is using a 96 dpi value but will my image resolution be a factor if the final projecting width is indeed 26 feet?”. This from Chantal, a friend and regular patron of PowerPoint Live. I am developing a presentation for a customer’s yearly meeting. Room specs: 120 feet long (around 700 people), maximum image width of 26 feet.