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#1
July 20th, 2006, 12:22 AM
posted to microsoft.public.powerpoint
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Image size for web-based presentations
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! 
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#2
July 20th, 2006, 05:13 AM
posted to microsoft.public.powerpoint
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Image size for web-based presentations
DPI doesn't mean much but ...
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). That'd be the way I'd go about it. 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? What format have you saved the images to? PNG, JPG or other? JPG is probably the first thing you want to try, and depending on the program you use for it, you may have Quality or Compression options to experiment with. The more compression, the lower the quality of the image and vice versa. ----------------------------------------- Steve Rindsberg, PPT MVP PPT FAQ: www.pptfaq.com PPTools: www.pptools.com ================================================
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#3
July 20th, 2006, 05:24 AM
posted to microsoft.public.powerpoint
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Image size for web-based presentations
Thank you, Steve. The images are .jpgs and I'm editing them in Photoshop.
LB "Steve Rindsberg" wrote: DPI doesn't mean much but ... 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). That'd be the way I'd go about it. 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? What format have you saved the images to? PNG, JPG or other? JPG is probably the first thing you want to try, and depending on the program you use for it, you may have Quality or Compression options to experiment with. The more compression, the lower the quality of the image and vice versa. ----------------------------------------- Steve Rindsberg, PPT MVP PPT FAQ: www.pptfaq.com PPTools: www.pptools.com ================================================
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#4
July 20th, 2006, 09:00 PM
posted to microsoft.public.powerpoint
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Image size for web-based presentations
In article , CoachLisaB wrote:
Thank you, Steve. The images are .jpgs and I'm editing them in Photoshop. You'll want to set your image size measurement to Pixels, then, or pick any combo of DPI * Inches that works out to the screen size in pixels you want. Photoshop will let you choose different quality levels when you save to JPG. Experiment a bit with that LB "Steve Rindsberg" wrote: DPI doesn't mean much but ... 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). That'd be the way I'd go about it. 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? What format have you saved the images to? PNG, JPG or other? JPG is probably the first thing you want to try, and depending on the program you use for it, you may have Quality or Compression options to experiment with. The more compression, the lower the quality of the image and vice versa. ----------------------------------------- Steve Rindsberg, PPT MVP PPT FAQ: www.pptfaq.com PPTools: www.pptools.com ================================================ ----------------------------------------- Steve Rindsberg, PPT MVP PPT FAQ: www.pptfaq.com PPTools: www.pptools.com ================================================
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#5
July 20th, 2006, 09:25 PM
posted to microsoft.public.powerpoint
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Image size for web-based presentations
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 "Steve Rindsberg" wrote: In article , CoachLisaB wrote: Thank you, Steve. The images are .jpgs and I'm editing them in Photoshop. You'll want to set your image size measurement to Pixels, then, or pick any combo of DPI * Inches that works out to the screen size in pixels you want. Photoshop will let you choose different quality levels when you save to JPG. Experiment a bit with that LB "Steve Rindsberg" wrote: DPI doesn't mean much but ... 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). That'd be the way I'd go about it. 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? What format have you saved the images to? PNG, JPG or other? JPG is probably the first thing you want to try, and depending on the program you use for it, you may have Quality or Compression options to experiment with. The more compression, the lower the quality of the image and vice versa. ----------------------------------------- Steve Rindsberg, PPT MVP PPT FAQ: www.pptfaq.com PPTools: www.pptools.com ================================================ ----------------------------------------- Steve Rindsberg, PPT MVP PPT FAQ: www.pptfaq.com PPTools: www.pptools.com ================================================
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#6
July 20th, 2006, 10:41 PM
posted to microsoft.public.powerpoint
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Image size for web-based presentations
In article , CoachLisaB wrote:
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. 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. LB "Steve Rindsberg" wrote: In article , CoachLisaB wrote: Thank you, Steve. The images are .jpgs and I'm editing them in Photoshop. You'll want to set your image size measurement to Pixels, then, or pick any combo of DPI * Inches that works out to the screen size in pixels you want. Photoshop will let you choose different quality levels when you save to JPG. Experiment a bit with that LB "Steve Rindsberg" wrote: DPI doesn't mean much but ... 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). That'd be the way I'd go about it. 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? What format have you saved the images to? PNG, JPG or other? JPG is probably the first thing you want to try, and depending on the program you use for it, you may have Quality or Compression options to experiment with. The more compression, the lower the quality of the image and vice versa. ----------------------------------------- Steve Rindsberg, PPT MVP PPT FAQ: www.pptfaq.com PPTools: www.pptools.com ================================================ ----------------------------------------- Steve Rindsberg, PPT MVP PPT FAQ: www.pptfaq.com PPTools: www.pptools.com ================================================ ----------------------------------------- Steve Rindsberg, PPT MVP PPT FAQ: www.pptfaq.com PPTools: www.pptools.com ================================================
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#7
July 20th, 2006, 10:48 PM
posted to microsoft.public.powerpoint
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Image size for web-based presentations
Got it. :-)
"Steve Rindsberg" wrote: In article , CoachLisaB wrote: 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. 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. LB "Steve Rindsberg" wrote: In article , CoachLisaB wrote: Thank you, Steve. The images are .jpgs and I'm editing them in Photoshop. You'll want to set your image size measurement to Pixels, then, or pick any combo of DPI * Inches that works out to the screen size in pixels you want. Photoshop will let you choose different quality levels when you save to JPG. Experiment a bit with that LB "Steve Rindsberg" wrote: DPI doesn't mean much but ... 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). That'd be the way I'd go about it. 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? What format have you saved the images to? PNG, JPG or other? JPG is probably the first thing you want to try, and depending on the program you use for it, you may have Quality or Compression options to experiment with. The more compression, the lower the quality of the image and vice versa. ----------------------------------------- Steve Rindsberg, PPT MVP PPT FAQ: www.pptfaq.com PPTools: www.pptools.com ================================================ ----------------------------------------- Steve Rindsberg, PPT MVP PPT FAQ: www.pptfaq.com PPTools: www.pptools.com ================================================ ----------------------------------------- Steve Rindsberg, PPT MVP PPT FAQ: www.pptfaq.com PPTools: www.pptools.com ================================================
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