You may use Microsoft PowerPoint for a long time before realising that you can save slides in a wide range of image formats. When you save a slide in Microsoft PowerPoint as a JPEG file, the program defaults to saving at an image resolution of 96 DPI (dots per inch), which translates to being an image that is 960 pixels in width and 720 pixels in height. If you wish to save as an image with higher or lower resolution, you can do this by editing the Microsoft PowerPoint registry keys with the Registry Editor tool.
- Skill level:
- Moderately Easy
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Click the "Start" menu button and select the "Run" option. Type "regedit" in the "Open" text box and click the "OK" button to open the Registry Editor.
Double-click the "HKEY_CURRENT_USER" folder in the left pane to expand it. Double-click to expand "Software," "Microsoft," and "Office." If you are running Microsoft PowerPoint 2003, double-click "11.0." If you are running PowerPoint 2007, double-click "12.0."
Double-click the "PowerPoint" folder, then single-click on "Options" to highlight it.
Click the "Edit" menu at the top of the Registry Editor window and hover your mouse pointer over "New." Click "DWORD Value."
Type "ExportBitmapResolution" as the name of the new key and press "ENTER" on your keyboard.
Right-click on the "ExportBitmapResolution" key and choose "Modify."
Set the "Base" value to "Decimal" and enter a value data number. The number entered corresponds to the resolution of the image (in this case a JPEG image) created in Microsoft PowerPoint. Specifically, the value data number is exactly equal to the DPI or the width of the image in pixels, divided by 10. If you enter a value of "50," then the image resolution will be 50 DPI and the image dimensions will be 500 pixels in width and 350 pixels in height (the image created is always proportional to prevent warping). The value data number for this key can be set to a maximum value of 307.
Click the "OK" button and close the Registry Editor window.
Restart your computer. Launch the PowerPoint program and open a slide presentation project. Open the slide from which you want to create the JPEG image file.
Click the "File" menu and choose "Save As." Select "JPEG File Format (*.JPG)" in the "Save As Type" drop-down menu. Type in a name for the exported image file and click the "Save" button to save the slide as a JPEG file in the new resolution.
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