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JPEG will give you more colors and more control over the compression rate (the more you compress the more the picture gets ugly)<br />
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GIF will only show 256 colors (i.e. it is 8 bit)<br />
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PNG will show about 16 million colors (i.e. it is 24 bit)<br />
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So, I'd choose PNG and if it didn't provide a reasonable compression I'd go with JEPG<br />
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Well, I didn't say why. PNG is loseless compression so it would keep the image/chart as is without changing its colors while JPEG (or JPG) is lossy so to it reduces the number of colors displayed to save file size.
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I'm trying to keep the size (MB) of my presentation low. What picture format should i use when pasting a chart from Excel into Powerpoint?<br />
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I'm trying to keep the size (MB) of my presentation low. What picture format should i use when pasting a chart from Excel into Powerpoint?



Excel to Powerpoint Chart paste PNG, JPEG GIF?

PowerPoint is a slide show presentation program currently developed by Microsoft. PowerPoint presentations consist of a number of individual pages or "slides" that may contain text, graphics, sound, movies, and other objects, which may be arranged freely. The presentation can be printed, displayed live on a computer, or navigated through at the command of the presenter. Slides can also form the basis of webcasts.

Microsoft PowerPoint

Microsoft Excel topics include formulas, formatting, VBA macros and user-defined functions, and everything else related to the spreadsheet user interface, including error messages.