Batch Image converter

  • Thread starter Thread starter Kurt De Pauw
  • Start date Start date
K

Kurt De Pauw

Hello,

We have the following problem.
Users who work with Powerpoint inside the company often use BMP format
instead of JPG format to add pictures to a slide show.
Problem is , that the powerpoint presentation grows and grows, also
our diskspace on the servers, where the files are stored are running
out ...

I'm searching for a tool ( maybee its in Powerpoint ) that Convert
all images inside a powerpoint to JPG.

I'm doing my best to open the presentations , copy the pictures,
convert them and then paste them back into the original powerpoint
slide.

This is a hell of a job, and actually not my job :-) but hey ... we
need the diskspace.

So ... anybody having the same problem ?
anybody has a tool where you can select a powerpoint presentation, and
automaticly convert als images inside de powerpoint presentation :-)

hope you can help me guys and Girls :-)

Kurt
 
Um ... bad news Kurt. You've been spending a lot of time doing something
that probably will not save much disk space. PowerPoint (since 97 I think)
uses it's own compression of inserted pictures, and it is a pretty good one.

However, you may want to ask all the users to do the items listed on these
links:
**Do this before using PowerPoint seriously
http://www.rdpslides.com/pptfaq/FAQ00034.htm

**Don't do this with PowerPoint. Seriously.
http://www.rdpslides.com/pptfaq/FAQ00511.htm

**Why are my PowerPoint files so big? What can I do about it?
http://www.rdpslides.com/pptfaq/FAQ00062.htm


--
Bill Dilworth, Microsoft PPT MVP
===============
Please spend a few minutes checking vestprog2@
out www.pptfaq.com This link will yahoo.
answer most of our questions, before com
you think to ask them.

Change org to com to defuse anti-spam,
ant-virus, anti-nuisance misdirection.
..
..
 
Dear,

Actually I have spend allot of time doing this with success!!
We have here PowerPoint Presentations about 30 Mb big (that's a little one)
I converted all pictures manually to JPEG and it has saved me 26 Mb.
Final result was about 4 Mb.

What people here are doing, is importing BMP files instead of JPG.
Is there a setting? So that PowerPoint compresses this automaticly ?

Kurt
 
OK, try this.

Open a presentation. Save as a new name. What is the resultant size
reduction?


--
Bill Dilworth, Microsoft PPT MVP
===============
Please spend a few minutes checking vestprog2@
out www.pptfaq.com This link will yahoo.
answer most of our questions, before com
you think to ask them.

Change org to com to defuse anti-spam,
ant-virus, anti-nuisance misdirection.
..
..
 
I think you're both right on this one...
The way I understand it is all bitmaps except JPEGs are stored in a
PowerPoint file using PNG compression, which is lossless but not as compact
as JPEG compression. Inserted JPEGs maintain JPEG compression and therefore
can be much more effective in reducing presentation size if a happy medium
can be found between image quality and size.
But at the same time often the user inserts pictures that are unnecessarily
large and here can be the root of much excessive file size. Bill's links
are well worth investigating.
 
Actually I have spend allot of time doing this with success!!
We have here PowerPoint Presentations about 30 Mb big (that's a little one)
I converted all pictures manually to JPEG and it has saved me 26 Mb.
Final result was about 4 Mb.

What people here are doing, is importing BMP files instead of JPG.
Is there a setting? So that PowerPoint compresses this automaticly ?
Click to expand...

You and Bill are both right. PowerPoint converts most file formats into PNG
(compressed) when it imports the images, so you do get the benefit of some
compression on importing the BMPs, but it's lossless compression.

Since JPGs use lossy compression, they squeeze down smaller than the equivalent
PNG, as you know. And PPT leaves them as JPGs when it imports them, so there's
a definite size advantage.

Our PPTools Optimizer (http://pptools.com) does the conversion to JPG
automatically. You might want to try the free demo.

It also addresses another problem you're probably having: oversized images in
the first place. Users often plop huge much larger images than they need to
into PPT, which also makes the files grow like mad.


--
Steve Rindsberg, PPT MVP
PPT FAQ: www.pptfaq.com
PPTools: www.pptools.com
================================================
Featured Presenter, PowerPoint Live 2004
October 10-13, San Diego, CA www.PowerPointLive.com
================================================
 
Kurt,
Adam and Bill are both right in this area. Probably the biggest issue
here is the images are overscanned so still oversized. We have a
PPTool called Optimizer that resizes everything in PPT for you to the
correct size for the space it takes up and might be worth looking at
for you many presentations.
Read more about it at http://www.rdpslides.com/pptools/FAQ00013.htm

Brian Reilly, PowerPoint MVP
 
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