How to permanently disable image compression in PowerPoint 2016 MS Office 365 Windows 10

Question

When a vba is run to bring Excel tables as pictures into PowerPoint slides, it shrinks the size on my co-worker's machine. Whereas it keeps the original image size on my machine. The only different between her machine and mine is Windows. She is on Windows 10 and I am on Windows 7. I added a registry setting to disable compression as prescribed in one of the discussions here but that also did not work.

Moreover, when I check the compression of images on her PowerPoint, it is set to ppi 220 and that option has been greyed out.

Can you please help?

I'll appreciate it.

***Moved from Windows 10 /Windows settings***

Answer 1

How would you do this on a Mac 365? Especially if you can't see the <advanced TAB> under Preferences...

Answer 2

Hi John, Thank you for responding so quickly. I've outlined the situation below, along with a bit of history...

Ordinarily, I use PC, PPT 365. 

I design a lot of my PPT slide elements in Illustrator (latest Adobe CC).

And then in PPT, Copy and Paste | Special -- an EMF (enhanced meta file).

I can then UNGROUP the pasted artwork and it becomes editable shapes and text.

I LOVE THIS FEATURE!!!

On a Mac. You just can't do that. 

So, I Pasted | Special -- PDF

This 'appears' to be a high rez vector graphic. Ordinarily, it IS a high rez vector graphic. Just one you can't break apart and edit inside PPT.

I saved and closed.

When I re-opened the file on the Mac, most of the graphics turned to low quality raster/bitmap images.

??? I read somewhere, that it is because the pasted PDF had transparent elements to it ???

PREVIOUS EXPERIENCE: I had this once before working on a Mac. But had my PC with me. I did the copy and paste, as before, but on my PC. I just didn't need to ungroup them. 

I then used the -ADVANCED TAB- on my PC AND clicked -Do not compress images-

These graphics (for the specific file), even on a MAC, never degraded into craggy raster images.

My questions are threefold: *What is happening? Why doesn't PPT Mac have the -advanced TAB-? And what can I do to rectify it on a Mac, without exporting the graphics as a PNG?*Which is still never going to be as good as a vector image.

PLEASE HELP!

Answer 3

The Advanced tab is a Windows-only feature. In PowerPoint 2016 or 2019 for Mac, please choose File>Compress Pictures and set the Picture Quality: dropdown to either High Fidelity (maximum ppi) or Use Original Quality. Both of these settings prevent downsampling.

But it's best to list the circumstances under which you are seeing blurry bitmaps, as there are other conditions under which PowerPoint will soften the output.

Answer 4

Check to see if "do not compress images in file" is checked in the advanced options:

1. Click File > Options.
2. In the Options box, click Advanced.
3. Under Image Size and Quality, select the Do not compress images in file check box.

See image below. I hope that helps.

Answer 5

The size difference is not due to compression, so turning it off won't help. This is most likely due to the VBA code having a different effect on different OSs or different versions of Office. If you choose File>Account and look at the complete version number under About PowerPoint (something like Version 1810 (Build 11001.20074 Click-to-Run), you'll be able to tell whether you and your co-worker are on the exact same version or not. Posting your exact version numbers may help. Posting the VBA code that pastes the tables could help as well.