For PowerPoint Viewer, keep ppt small

As I've discussed in other threads here, there is a difference in how
PowerPoint Viewer (2003) handles large images compared to PowerPoint itself.
Not sure why that is, perhaps that PowerPoint pre-caches all images for
editing or something but PPT Viewer slows down dramatically for larger
presentations (say over 10 Mb). The difference might be the implementation
of one of the dlls included along with pptview.exe in the PresentationCD
folder exported by PPT.

So make sure you downsize your images (using advice in many other threads in
this group) so that your PPT presentation (or pps) is less than 5 Mb and
will behave properly in PPT Viewer 2003.

- Mitch Gallant
MVP Security

Hi Mitch

Would you try an experiment for me.

With a file with several jpegs inserted at a "sensible" resolution (ie
pretty much as small as the file will go)

Try to cut each picture in turn and paste it back "paste special as a jpg".
Then resave with a new name and compare file sizes.

For me this gives a substantial file size reduction and I'd like to know if
its general. I was originally working with very bloated files but for me it
seems to work on alreadt smallish files. Maybe you could email me results
address in profile.
--
-----------------------------------------
Did that answer the question / help?
_____________________________
John Wilson
Microsoft Certified Office Specialist



"Mitch Gallant" wrote:

As I've discussed in other threads here, there is a difference in how
PowerPoint Viewer (2003) handles large images compared to PowerPoint itself.
Not sure why that is, perhaps that PowerPoint pre-caches all images for
editing or something but PPT Viewer slows down dramatically for larger
presentations (say over 10 Mb). The difference might be the implementation
of one of the dlls included along with pptview.exe in the PresentationCD
folder exported by PPT.

So make sure you downsize your images (using advice in many other threads in
this group) so that your PPT presentation (or pps) is less than 5 Mb and
will behave properly in PPT Viewer 2003.

- Mitch Gallant
MVP Security

OK will try this and report back soon.

"John Wilson" codepeople AT aol DOT com wrote in message
...
Hi Mitch

Would you try an experiment for me.

With a file with several jpegs inserted at a "sensible" resolution (ie
pretty much as small as the file will go)

Try to cut each picture in turn and paste it back "paste special as a
jpg".
Then resave with a new name and compare file sizes.

For me this gives a substantial file size reduction and I'd like to know
if
its general. I was originally working with very bloated files but for me
it
seems to work on alreadt smallish files. Maybe you could email me results
address in profile.
--

John,

I have tried this on a ppt presentation with about 15 embedded jpg images
using "Cut, Paste Special as jpg" as you requested:

Original ppt Size: 2.83 Mb
New ppt Size: 1.52 Mb (after Paste Special ..)

So indeed I have verified what you have found.
I went a bit further:
I compared the Cut images by pasting into Microsoft Photo Editor and
compared the actual images in the two ppt, and indeed the images are smaller
in the "Paste Special as jpg" modified document.
So clearly "Paste Special as jpg" does some sort of intelligent (or buggy?)
image resizing on pasting.

typical example of downsizing: 940x768 --- 824x673 (after Paste
special).

Of course I didn't try Paste Special more than once .. maybe we can reduce
the doc size down to zero!
and defy the 2nd law of Thermodynamics ;-)

A word about image quality on Paste Special ... I didn't notice any obvious
visible reduction in quality with Paste Special as JPG downsizing so this
seems like a useful tidbit to know and document.

Would be interested to know if this downsizing for Paste Special is by
design and what the algorithm for resizing is.

Cheers and nice find!

- Mitch Gallant
MVP Security
www.jensign.com

"John Wilson" codepeople AT aol DOT com wrote in message
...
Hi Mitch

Would you try an experiment for me.

With a file with several jpegs inserted at a "sensible" resolution (ie
pretty much as small as the file will go)

Try to cut each picture in turn and paste it back "paste special as a
jpg".
Then resave with a new name and compare file sizes.

For me this gives a substantial file size reduction and I'd like to know
if
its general. I was originally working with very bloated files but for me
it
seems to work on alreadt smallish files. Maybe you could email me results
address in profile.
--
-----------------------------------------
Did that answer the question / help?
_____________________________
John Wilson
Microsoft Certified Office Specialist



"Mitch Gallant" wrote:

As I've discussed in other threads here, there is a difference in how
PowerPoint Viewer (2003) handles large images compared to PowerPoint
itself.
Not sure why that is, perhaps that PowerPoint pre-caches all images for
editing or something but PPT Viewer slows down dramatically for larger
presentations (say over 10 Mb). The difference might be the
implementation
of one of the dlls included along with pptview.exe in the PresentationCD
folder exported by PPT.

So make sure you downsize your images (using advice in many other threads
in
this group) so that your PPT presentation (or pps) is less than 5 Mb and
will behave properly in PPT Viewer 2003.

- Mitch Gallant
MVP Security

So clearly "Paste Special as jpg" does some sort of intelligent (or buggy?)
image resizing on pasting.

Not so mysterious.

If the shape you copy occupies the full 10" wide slide, you get a 960 pixel
image back, at least in PPT2003. Or fewer pixels if the original shape you
copy sprawls over less screen real estate.

A word about image quality on Paste Special ... I didn't notice any obvious
visible reduction in quality with Paste Special as JPG downsizing so this
seems like a useful tidbit to know and document.

Since it gives you back approximately what you already see on screen, you won't
generally see a big quality difference.

OTOH, if you reduce a big image to a postage stamp on the slide, then do the
copy/paste special/jpg dance on its head, I wouldn't plan on bumping the image
back up to full slide size. Not if you have your glasses on. ;-)

I think the point is that when the Insert image from file, you get the
entire image included in the ppt file.
If you Paste special as jpg, it resizes on import as you say (I think) which
was surprising and mysterious to me.
(and some others I expect :-)
- Mitch

"Steve Rindsberg" wrote in message
...

So clearly "Paste Special as jpg" does some sort of intelligent (or
buggy?)
image resizing on pasting.

Not so mysterious.

If the shape you copy occupies the full 10" wide slide, you get a 960
pixel
image back, at least in PPT2003. Or fewer pixels if the original shape
you
copy sprawls over less screen real estate.

In article , Mitch Gallant wrote:
I think the point is that when the Insert image from file, you get the
entire image included in the ppt file.
If you Paste special as jpg, it resizes on import as you say (I think) which
was surprising and mysterious to me.

It doesn't resize anything so much as it gives you what you asked for. You
just have to be able to read the menu. Which isn't written in the clearest
English, hence the mysteries.

See, when you copy, PowerPoint (or any app) can put all kinds of different
representations of the copied item on the clipboard. PowerPoint copies the
image *as displayed*, the image as an MS Drawing Object and several other
formats. When you choose As JPG, PNG or GIF, the image *as displayed* is what
you get.

A normal Paste, Nothin' Special, gives you the MS Drawing Object (in the case
of an image, you get the original, full size).



(and some others I expect :-)
- Mitch

"Steve Rindsberg" wrote in message
...

So clearly "Paste Special as jpg" does some sort of intelligent (or
buggy?)
image resizing on pasting.

Not so mysterious.

If the shape you copy occupies the full 10" wide slide, you get a 960
pixel
image back, at least in PPT2003. Or fewer pixels if the original shape
you
copy sprawls over less screen real estate.



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

Thanks Steve. That explains it nicely.
Another question:
When you Insert Picture from file (or Paste I guess) what determines how
that image is sized in the slide?
It definitely is not the actual size of the image (but the entire image is
embedded in the ppt).
- Mitch

"Steve Rindsberg" wrote in message
...
In article , Mitch Gallant wrote:
I think the point is that when the Insert image from file, you get the
entire image included in the ppt file.
If you Paste special as jpg, it resizes on import as you say (I think)
which
was surprising and mysterious to me.

It doesn't resize anything so much as it gives you what you asked for.
You
just have to be able to read the menu. Which isn't written in the
clearest
English, hence the mysteries.

See, when you copy, PowerPoint (or any app) can put all kinds of different
representations of the copied item on the clipboard. PowerPoint copies
the
image *as displayed*, the image as an MS Drawing Object and several other
formats. When you choose As JPG, PNG or GIF, the image *as displayed* is
what
you get.

A normal Paste, Nothin' Special, gives you the MS Drawing Object (in the
case
of an image, you get the original, full size).



(and some others I expect :-)
- Mitch

"Steve Rindsberg" wrote in message
...

So clearly "Paste Special as jpg" does some sort of intelligent (or
buggy?)
image resizing on pasting.

Not so mysterious.

If the shape you copy occupies the full 10" wide slide, you get a 960
pixel
image back, at least in PPT2003. Or fewer pixels if the original shape
you
copy sprawls over less screen real estate.



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

OK strike that last comment. I was looking at a 600 dpi image and 2484
pixels wide so was only 4" wide. I was a bit confused at first because I was
looking at this in PhotoEditor which displays size based on pixel width so
it looked huge.
Indeed, PowerPoint initially displays the actual width (in inches) of the
image.
Also, the "Reset" button doesn't show the change back to actual size unless
Preview or OK is pressed.

- Mitch

"Mitch Gallant" wrote in message
...
Thanks Steve. That explains it nicely.
Another question:
When you Insert Picture from file (or Paste I guess) what determines how
that image is sized in the slide?
It definitely is not the actual size of the image (but the entire image is
embedded in the ppt).
- Mitch

"Steve Rindsberg" wrote in message
...
In article , Mitch Gallant wrote:
I think the point is that when the Insert image from file, you get the
entire image included in the ppt file.
If you Paste special as jpg, it resizes on import as you say (I think)
which
was surprising and mysterious to me.

It doesn't resize anything so much as it gives you what you asked for.
You
just have to be able to read the menu. Which isn't written in the
clearest
English, hence the mysteries.

See, when you copy, PowerPoint (or any app) can put all kinds of
different
representations of the copied item on the clipboard. PowerPoint copies
the
image *as displayed*, the image as an MS Drawing Object and several other
formats. When you choose As JPG, PNG or GIF, the image *as displayed* is
what
you get.

A normal Paste, Nothin' Special, gives you the MS Drawing Object (in the
case
of an image, you get the original, full size).



(and some others I expect :-)
- Mitch

"Steve Rindsberg" wrote in message
...

So clearly "Paste Special as jpg" does some sort of intelligent (or
buggy?)
image resizing on pasting.

Not so mysterious.

If the shape you copy occupies the full 10" wide slide, you get a 960
pixel
image back, at least in PPT2003. Or fewer pixels if the original
shape
you
copy sprawls over less screen real estate.



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

Mitch,

Not quite certain why your seeing this as I've put together Pressies in the
75 meg range and played them with the viewer fine.


Austin Myers
MS PowerPoint MVP Team

Provider of PFCMedia http://www.pfcmedia.com



"Mitch Gallant" wrote in message
...
As I've discussed in other threads here, there is a difference in how
PowerPoint Viewer (2003) handles large images compared to PowerPoint
itself. Not sure why that is, perhaps that PowerPoint pre-caches all
images for editing or something but PPT Viewer slows down dramatically for
larger presentations (say over 10 Mb). The difference might be the
implementation of one of the dlls included along with pptview.exe in the
PresentationCD folder exported by PPT.

So make sure you downsize your images (using advice in many other threads
in this group) so that your PPT presentation (or pps) is less than 5 Mb
and will behave properly in PPT Viewer 2003.

- Mitch Gallant
MVP Security