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You can change the export resolution in Microsoft PowerPoint by saving a slide in a picture format. There are two steps to this process: using the system registry to change the default resolution setting for exported slides, and then actually saving the slide as a picture at the new resolution.
Step 1: Change the export resolution setting
Important
Follow the steps in this section carefully. Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration in case problems occur.
By default, the export resolution of a PowerPoint slide that you want to save as a picture is 96 dots per inch (dpi). To change the export resolution, follow these steps:
- Exit all Windows-based programs.
- Right-click the Start button and then Run. (In Windows 7, select Start, and then Run.)
- In the Open box, type regedit, and then select OK.
- Locate one of the following registry subkeys, depending on the version of PowerPoint that you're using:PowerPoint 2016HKEY_CURRENT_USERSoftwareMicrosoftOffice16.0PowerPointOptionsPowerPoint 2013HKEY_CURRENT_USERSoftwareMicrosoftOffice15.0PowerPointOptionshttps://everboxes629.weebly.com/blog/pomodoro-timer-mac-app. PowerPoint 2010HKEY_CURRENT_USERSoftwareMicrosoftOffice14.0PowerPointOptionsPowerPoint 2007HKEY_CURRENT_USERSoftwareMicrosoftOffice12.0PowerPointOptionsPowerPoint 2003HKEY_CURRENT_USERSoftwareMicrosoftOffice11.0PowerPointOptions
- Click the Options subkey, point to New on the Edit menu, and then click DWORD Value.
- Type ExportBitmapResolution, and then press Enter.
- Make sure that ExportBitmapResolution is selected, and then click Modify on the Edit menu.
- In the Edit DWORD Value dialog box, select Decimal.
- 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 NoteSee the Limitations section for more information when you set this value. - Select OK.
- On the File menu, select Exit to exit Registry Editor.
Step 2: Export the slide as a picture
- In PowerPoint, open your slide presentation, and then open the slide that you want to export.
- On the File menu, select Save As.
- 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)
Note
You may want to change the picture's save location in the Save in box. You may also want to change the name of the picture in the File name box.
- 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.
- To verify that the slide is saved in the resolution that you specified, right-click the picture, and then select Properties.
Limitations
When you set the ExportBitmapResolution registry value in PowerPoint, there's a maximum DPI limitation to consider for some versions of PowerPoint.
Maximum DPI is dependent upon the slide size. The formula is:maxdpi = (sqrt(100,000,000 / (slide with * slide height)), where slide width/height are in inches.
For example, for a standard 13.3' x 7.5' slide, the equation would be:sqrt(100,000,000 / (13.333 * 7.5) ) = 1000.
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.
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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.
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Decimal value | Pixels (horizontal × vertical) | Dots per inch (horizontal and vertical) |
---|---|---|
307 | 3072 × 2304 | 307 dpi |
The 3072-pixel limit also applies to saving the slide programmatically.
For example, the following code programmatically saves a picture with dimensions of 3072 × 2304 pixels:
More information
For information about changing the size of your slides, see Change the size of your slides.
In many times, people are required to upload an image of specified resolution to a website or server. It is easy to decrease the resolution with photo editing software for PC, but the case is quite different when we need to increase photo resolution if the original image is small. It will not work if you simply increase the width and height of the image, because the image will be distorted with quality losing. To get the best result, you will need rich experience of manual editing or good tools for automatic improvement.
Tips for Improving Photo Resolution
- Always make a backup for the original photo
- Don’t overwrite the original photo unless you’re fully satisfied
- Increase the resolution slightly at a time, like by 10%.
Pro Tips: If you mistakenly deleted the original images or the modified work, don’t hesitate to use RePicvid Free Photo Recovery to get them back. The recovery software can undelete pictures from SD card, USB drive, hard disk drive and computer for free.
Method 1. How to Increase Photo Resolution online, free
The easiest solution for this task is by using online, free tools, which are developed with a certain algorithm to enlarge the images so that users don’t need technical knowledge. Those utilities are usually free, because the process is automated at low cost. However, ads may be listed to support the running of the website. Users just need to be careful to avoid mis-operation.
The following are three of the best online tools for increasing photo resolution:
1. PhotoEnlarger – Increase Resolution of Image by PX
As an online photo enlarger, easy-to-use is the most important feature. In PhotoEnlarger, you just need to upload the small image, then select the desired resolution by moving the slider or entering the parameters before applying. This online tool suits for most people’s need.
2. ResizeMyPicture – Increase Resolution of Multiple Photos
What if you want to increase the resolution of several photos at one time? The developer of ResizeMyPicture has taken that into account. You can choose up to 5 pictures and specify the desired width or height by pixel. This website supports JPG, GIF and PNG images up to 3 MB in size and 3000 pixels wide.
3. ImageEnlarger – Increase Resolution of Image by URL
It may be rare to see, but in ImageEnlarger, you can improve photo resolution by URL. The supported image types include JPG, PNG, GIF and BMP, but the output format is limited in JPG and PNG. The ratio is locked, so you just need to specify either the target width or height. You will preview the output image before saving it. Opengl 1.0 download mac.
Method 2. How to Increase Resolution of Image with Photoshop
In case you want to have a try with the Adobe Photoshop program installed on your computer, or the above online tools do not support your image types. Here are the steps to increase resolution of image with Photoshop.
- Step 1. Open the image with Photoshop.
- Step 2. Click Image from the menu bar, then select Image Size.
- Step 3. Enter the desired resolution or width and height, then click OK to apply.
- Step 4. Preview the modified image before saving it as a new file.
Note: You may need to sharpen the image after increasing its resolution in order to make it looks better.
You can also increase photo resolution with many more photo editing tools, but the result won’t be better than Photoshop.
Method 3. How to Increase Photo Resolution without Photoshop on Mac
The online tools on Method 1 work for both Windows and Mac users. However, if you are worrying about the safety of internet and want to increase photo resolution without Photoshop on Mac, please follow the steps below.
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- Step 1. Go to the application folder and open Preview.
- Step 2. On the top bar, click File > Open, then locate and open the image.
- Step 3. Click Tools from the menu and choose Adjust Size.
- Step 4. On the popup window, modify the dimensions for the desired resolution.
- Step 5. Preview the result, then click File > Save as and give the new image a name.
Limitations of Image Resolution Increasing
Change Dpi In Photoshop
The methods above can maximize the resolution of your photos, but the best appearance is decided by you. You need to find the point with best quality and qualified resolution. If the original photo is too small, the enlarged work may not be satisfying enough. In addition, if you take a photo for a printed old image and want to increase the resolution in these methods, you won’t reach a good result. Instead, you can try to restore old photos in other ways.
Bottom Line
The perfect result of enlarging an image is the situation of a desired resolution and satisfying visual effect. If you’re not proficient at editing photos, the free tools are best choices to increase the resolution of images automatically. Make sure to back up the original images properly to avoid data loss, and don’t forget to share this article to your social channels.
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