PowerPoint - How do I save a power point presentation so others can't edit it?

I need to email a presentation  to someone (who did non of the work and is
probably going to try and change it so that it looks like she did!).  Can I
send her a read only copy - at least to make it a little more difficult for
her to change it!

Some ideas here:
http://www.pptalchemy.co.uk/powerpoint_hints_and_tips_tutorials.html#security
and here:
http://pptfaq.com/FAQ00038.htm
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Amazing PPT Hints, Tips and Tutorials

http://www.pptalchemy.co.uk/powerpoint_hints_and_tips_tutorials.html

email john AT technologytrish.co.uk

1.Save the PowerPoint presentation slides as images (then use Windows Movie
Maker to combine the images into video).
2.Use some tools to burn PowerPoint to DVD or Video, take Moyea PPT to DVD
as example, launch the tool, import ppt file, customize your configuration,
and burn them to DVD, just a few clicks. The DVD created by this tool can
play on DVD player.
3.Package the presentation as CD.
4.Save the presentation as .html format.
5.Save .ppt as .pps.

---
loong

--Moyea Software is here with zealous and timely tech support!--
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Hi, look at here,
an article tells how to protect your PowerPoint from being modified by
others:
http://www.ppt-to-video.com/blog/powerpoint-password.html