Image size for web-based presentations

[CoachLisaB]

I've seen a lot of discussion about how to size images for PP presentations
to be shown on the computer or projected, but I'm not finding anything about
sizing images for the web.

Even after compressing my images and converting to .html, the presentation
was loading very slowly on the web. So I went back, resized each image to 72
dpi and optimized for the web and re-inserted them into the presentation. The
file sizes on some of the images are still as much as 200 kb, and it's still
really slow.

I've read about sizing images at 1024 x 768, or the size of the screen, at
first, that's what I did (most of the images are full-screen). But for the
web, it seems that I should be able to shrink the images to a certain degree
and still have good quality. What is the magic formula for this?

Thank you!

 

[CoachLisaB]

Thank you, Steve. The images are .jpgs and I'm editing them in Photoshop.

LB

 

[CoachLisaB]

Thanks. I'll keep working on it. So, I guess you're saying that there's no
"easy" formula equivalent to the "monitor size" rule used for projected
presentations.

LB

 

[CoachLisaB]

Got it.

Well, yes, for full-screen images, it's the same. Monitor size, in pixels.
But since Photoshop can be sorta buttheaded about this, make it happy. 128 dpi at 8"
will give you 1024 pixels.


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Steve Rindsberg, PPT MVP
PPT FAQ: www.pptfaq.com
PPTools: www.pptools.com
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