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MacOS: How to stop image compression in Powerpoint

Anonymous
2022-03-30T09:57:58+00:00

We're often working with full-webpage screenshots. However, in some of the powerpoint templates we receive from clients, the quality is immediately visibly severely downgraded when adding such a large image (JPEG file).

I've checked, the issue is not with the image itself (which is sharp and crystal clear in preview). It doesn't matter whether I drag the image into powerpoint directly from Finder, or if I use the insert > picture from file option. This issue does not occur not in all templates we receive (in a standard blank template it does not, for example). If I add such a large image into a template which does not compress the image, and copy it to one that normally does when inserting it directly, the image quality does not change (and thus is not compressed).

How do I stop a powerpoint template from doing this? If I want to compress an image, I can select the compress images option. I don't want powerpoint doing this automatically.

Edit: in windows this is easily fixed, by selecting File > options > do not compress images in file. However, in MacOS I don't have this option.

Microsoft 365 and Office | PowerPoint | For business | MacOS

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  1. John Korchok 231.4K Reputation points Volunteer Moderator
    2022-03-30T16:55:19+00:00

    Sorry, I can't duplicate the result you describe with the file you uploaded. Using Insert>Picture>Picture from file or pasting the picture brings it in at the normal resolution.

    In PowerPoint for Mac, you can choose File>Compress Pictures and set Picture Quality to High Fidelity (Maximum ppi). This has exactly the same effect as setting the analogous option in PowerPoint for Windows. I recommend you do this as a first step when opening a presentation from your client.

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  2. Anonymous
    2022-04-12T14:57:57+00:00

    I've exported that image as PNG, which didn't make a different (see my earlier responses). But I'll check if my screenshot software can save as PNG.

    Cropping the area isn't an option. We need to use the powerpoint 'morph' function to 'scroll' through the site. If it's cropped, the function doesn't work anymore.

    Besides, the issue doesn't occur in other templates or a blank powerpoint template. So it has to do with either some template-related setting or the template itself, not the image itself.

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  3. Anonymous
    2022-03-30T18:33:45+00:00

    Okay, but changing the setting doesn’t solve the issue though.

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  4. John Korchok 231.4K Reputation points Volunteer Moderator
    2022-03-30T18:26:48+00:00

    The image compression setting in both Windows and Mac is a per-file setting, not an installation setting. So every time you open a file, you should check File>Compress Pictures and set Picture Quality to High Fidelity.

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  5. Anonymous
    2022-03-30T17:44:02+00:00

    Oh that's weird! When I re-download the file from the link I've shared, I get the same issue. Maybe a powerpoint-system-setting somewhere then? But I don't have the issue in all templates... And I'd rather not share the original template on here.

    I already have that setting set up like that, and it somehow it still compresses large images. It compresses as well when I select 'original quality' instead of high-fidelity. The only 'answer' I've come across is that setting in windows through advanced settings (that fixes it in the template) but as I'm normally working on a mac, you can imagine that's quite a workaround

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