PowerPoint 2008 for Mac

[wzekanoski]

Version: 2008 Operating System: Mac OS X 10.4 (Tiger) What is the optimal size and resolution for a full background image in a PPTX file?

I'm not sure how large the client will be projecting the PPT but it may be on a large screen.

 

[Steve Rindsberg]

Version: 2008 Operating System: Mac OS X 10.4 (Tiger) What is the
optimal size and resolution for a full background image in a PPTX
file?

I'm not sure how large the client will be projecting the PPT but it
may be on a large screen.

Screen size isn't important, odd as it may sound.

What's important is the resolution of the projector (usually 1024 x
768).

You want your full slide images to be that big or perhaps a bit bigger,
say 10 or 20 percent.

 

[wzekanoski]

Thanks Steve,

So this is a pixel dimension? Will it matter that my photoshop image is 72 resolution at that size? The file size will be about 1.5MB. Does that sound right?

Thanks,
WZ

 

[CyberTaz]

Hi WZ;

Extending on what Steve suggested...

Photoshop is a photo editing application primarily intended for processing
images for local or commercial printing. Its measurement system of pixels
per inch (ppi) means absolutely nothing outside the printed page. For video
display purposes your primary concern is with the pixel dimensions of the
image. At the 1024x768 Steve cited the total pixel size of the image should
be well under 1 MegaPixel. If your image file size is 1.5MB it suggests that
the image is being saved in a file format inappropriate for video display,
such as TIFF or EPS, and/or in a CMYK color mode - also improper for video
use - and/or at too high a resolution.

If you use Photoshop's File> Save for Web & Devices command, select JPEG (if
it's a photograph) or PNG (if it's anything else) you'll wind up with a file
that ranges between 35-400KB, depending on quality settings. For a JPEG use
Medium Quality unless there is a lot of tonal variation. If it's a graphic
design rather than a photograph use PNG-8 or PNG-24 with an Image Size of
1024W by 768H or 1280x1024.

HTH |:>)
Bob Jones
[MVP] Office:Mac

 

[Steve Rindsberg]

Thanks Steve,

So this is a pixel dimension?
Yes.

Will it matter that my photoshop image
is 72 resolution at that size?

Not at all. As long as the pixel dimensions stay constant, the DPI
value can wander all over the place and the image doesn't change. In
fact, in TIFF files, DPI is just a single number in the file that says
"Let's pretend that DPI matters, and here's what let's pretend it is."
All the rest of the image data is the same.

The file size will be about 1.5MB.
Does that sound right?

Hard to say ... the same image, same number of pixels, might be very
different file sizes depending on the file format.

 

[wzekanoski]

Thanks this helps a lot.

WZ