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What's the dimensions of a powerpoint slide in pixels?

I'm having a hard time trying to get it right. I keep guessing and checking and it's taking too long. I googled some results and they're a bit off as well.

The other issue is that i'm using .opd format; the format proprietary to open office / libreoffice in windows 7.

I'm just trying to design a decent background for my presentation.

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What version of PowerPoint? And are you primarily viewing on screen? –  e100 Jul 6 '11 at 17:06
    
Actually, it's impress Open Office / Libre Office Impress: libreoffice.org/features/impress –  chrisjlee Jul 6 '11 at 17:11
    
If it's open office, then it's not powerpoint. Your question is a little confusing. Anyways, I imagine the size of the slide is based on the page layout options in the particular presentation. –  DA01 Jul 5 '12 at 17:07
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5 Answers

Both PowerPoint and Impress slides are specified in inches or cm, rather than pixels, and these real-world units are somewhat arbitrary given that the presentations are normally scaled proportionally to fit whatever screen they're shown on. (Or non-proportionally, if somewhat's got the screen settings wrong)

I'd go with an image that's big enough in pixels for any screen you're likely to show it on; just scale it proportionally to fill the background.

But for best results try to match the proportions of the presentation itself to the screen you're going to use. Both PowerPoint (at least up to 2003) and Impress (latest version in mid 2011) "sized for on-screen show" slides defaulted to a 4:3 ratio, which is too tall for modern widescreens. In PowerPoint 2010 (and perhaps 2007?) you have the choice of 4:3, 16:9, 16:10.

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It occurs to me that I'm probably in the minority of people on this site who remember when Powerpoint's output was actual slides -- the film kind. There were these projector things with carousels on top and even the remotes and auto change used analog signals -- the Neolithic period of Powerpoints. –  Alan Gilbertson Jul 6 '11 at 21:22
    
Transition animations must have been a bit fiddly ;-) –  e100 Jul 7 '11 at 10:14
    
If I recall correctly, those involved something with smoke, mirrors and a sacrificial goat. :-D –  Alan Gilbertson Jul 7 '11 at 18:55
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I create Powerpoint templates regularly for clients.

I use RGB / 1504px x 1129px or 20.889" x 15.681" / 72ppi jpg or png files for full page backgrounds in PowerPoint. This image size will cover the entire slide. Any thing smaller will need to be scaled to match the slide dimension.

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This will be too tall for modern widescreen ratios, though. –  e100 Jul 5 '12 at 18:19
    
I'm simply posting what I use every day. I realize it may not fit with screen sizes, but this is the max size of a Powerpoint slide. How Powerpoint squishes and squirms to fit a screen is somewhat irrelevant. This is the size of the full slide. –  Scott Jul 5 '12 at 18:44
    
As e100 pointed out above, thankfully you can choose the aspect ratio now. You can actually create the image to fit the screen. Personally, I just use Google Presentations now anyway. –  plainclothes Apr 4 at 16:25
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Inside Libre Office / Open Office Impress

  1. File -> Export as JPEG
  2. Open the .jpg export reveals the PX Dimensions

1058px x 794px at 72 DPI

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I'm not sure the exported px dimensions are necessarily the same as the best dimensions for the background, which is what you seemed to be asking. –  e100 Jul 7 '11 at 10:13
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PPT default presentation: 2200X1650. Pic resolution: 220. I got this size by creating a rectangle with a slide size in my presentation> save as jpg. I insert it in PPT and it was too small. I read that the default res in PPT is 220 so I resample my pic in Photoshop from 150 dpi to 220 dpi and got the exact size. It might be heavy so you can use 1500X? (I don't remember but keep it proportionally) - PPT save as default, and stretch it in PPT.

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try: page size 50.80cm x 28.57cm. It seems to work for me so far. I created a full HD JPEG in Photoshop (1920x1080 pixels at 72dpi pixels per inch). Then created a new Impress presentation. Right clicked the page and entered: slide > page setup.

At first I tried 16cm across by 9cm high and then doubled each in turn, until I reached largest cm size possible (300cm is largest so finally reached 256cm x 144cm) but when I inserted the full HD JPEG, the image was really small. so I selected original size and it was still really small. So I investigated the JPEG size with a right click and it was 50.80cm x 28.57cm) so: Changed page size to 50.80cm x 28.57cm.

Then inserted picture. (have to right click > position & size and play with the settings a bit. ie: position x at 0cm and y at 0 cm. but then the image should fit perfectly).

I've not tested this as a presentation yet, but so far, this seems to be working.

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