How to change the export resolution of a PowerPoint slide to be 1000 dpi?

By default, the export resolution of a PowerPoint slide that you want to save as a picture is only 96 dots per inch (dpi), which is much lower than the 300 dpi required by most journal papers. However, you can easily change the default resolution setting to 300 dpi, or even 1000 dpi, using the system registry.

Solution

Step 1: Change the export resolution setting

1. Exit all Windows-based programs.

2. Right-click the Start button and then Run.

3. In the Open box, type regedit, and then select OK.

{% note info %} You can also type regedit in Command Prompt (cmd) to open Registry Editor. {% endnote %}

1. Locate one of the following registry subkeys, depending on the version of PowerPoint that you’re using:

   • PowerPoint 2016, 2019, PowerPoint for Office 365

     HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\PowerPoint\Options

   • PowerPoint 2013

     HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\PowerPoint\Options

5. Click the Options subkey, point to New on the Edit menu, and then click DWORD (32-bit) Value.

6. Type ExportBitmapResolution, and then press Enter.

7. Make sure that ExportBitmapResolution is selected, and then click Modify on the Edit menu.

8. In the Edit DWORD Value dialog box, select Decimal.

9. In the Value data box, type the value of the resolution that you want such as 300. Or, use the parameters in the following table.

Decimal value	Full-screen pixels (horizontal × vertical)	Widescreen pixels (horizontal × vertical)	Dots per inch (horizontal and vertical)
50	500 × 375	667 × 375	50 dpi
96 (default)	960 × 720	1280 × 720	96 dpi
100	1000 × 750	1333 × 750	100 dpi
150	1500 × 1125	2000 × 1125	150 dpi
200	2000 × 1500	2667 × 1500	200 dpi
250	2500 × 1875	3333 × 1875	250 dpi
300	3000 × 2250	4000 × 2250	300 dpi

{% note info %} See the Limitations section for more information when you set this value. {% endnote %}

10. Select OK.

11. On the File menu, select Exit to exit Registry Editor.

Step 2: Export the slide as a picture

1. In PowerPoint, open your slide presentation, and then open the slide that you want to export.

2. On the File menu, select Save As.

3. In the Save as type box, select one of the following picture formats:

   • GIF Graphics Interchange Format (*.gif)
   • JPEG File Interchange Format (*.jpg)
   • PNG Portable Network Graphics Format (*.png)
   • TIFF Tag Image File Format (*.tif)
   • Device Independent Bitmap (*.bmp)
   • Windows Metafile (*.wmf)
   • Enhanced Windows Metafile (*.emf)

4. Select Save. You will be prompted with the following dialog box:


Select Current Slide Only. The slide is saved in the new format and resolution, in the location that you specified in the Save in box.

5. To verify that the slide is saved in the resolution that you specified, right-click the picture, and then select Properties.


Limitations

PowerPoint 2019, 2016, 2013, and 365

There is no fixed DPI limit. Slide export is only limited by how big the resulting bitmap gets. PowerPoint can support creating bitmaps up to ~100,000,000 pixels (width x height). For standard widescreen slides (13.3" x 7.5") this means a maximum DPI of 1000. For the old style 10" x 7.5" slides this means a maximum of 1155 DPI, but depending on slide size, this can be more or less.

PowerPoint 2010 and older

The maximum resolution that PowerPoint can export is 3072 pixels, based on the longest edge of the slide. For example, the standard 10" × 7.5" slide has a maximum effective DPI value of 307. The 3070-pixel result (10 × 307 = 3070) falls within the 3072 limit. However, any DPI setting that’s greater than 307 for a standard slide reverts to the limit of 3072.

Reference

https://docs.microsoft.com/en-us/office/troubleshoot/powerpoint/change-export-slide-resolution