Change Microsoft PowerPoint 2016 export to image resolution

By default save as image file will get you 96 dpi. To change this follow this step:

1. Start REGEDIT (Run Regedt32.exe)
2. Navigate to HKEY_CURRENT_USER\Software\Microsoft\Office\X.0\PowerPoint\Options (For X> above, substitute 16.0 for PowerPoint 2016, 15.0 for PowerPoint 2013, 14.0 for PowerPoint 2010, 12.0 for PowerPoint 2007 and 11.0 for PowerPoint 2003) 
3. Add a new DWORD value named ExportBitmapResolution and set its DECIMAL value to the DPI value you want (for example, for a 3000 pixel image from a 10" wide slide, you'd enter 300) 
4. Close REGEDIT, start PowerPoint and test.

I'm using 250 dpi.

Google launch web based powerpoint

Try Google Docs here.

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