Hello Ray,
Here's a PowerPoint 2002 and 2003 only solution that takes advantage of the
true transpareny feature, which has the additional benefit that you can
change your color schemes on your slides and the background automatically
adjusts so that it continues to contrast and complement the other color
scheme colors while still allowing the background image to be seen.
A) Make the image the background for all slides in your presentation
1. Format -> Background
2. Choose "Fill Effects" from drop-down menu in dialog
3. In "Picture" tab select your background picture file and click "OK"
4. Click "Apply to all"
B) Add "washout" mask in front of background
1) View -> Master -> Slide Master
2) Draw a rectangle AutoShape that covers entire slide area
3) Draw -> Order -> Send to Back
4) Format -> AutoShape
5) Change Fill color to 1st color scheme color and trasparency to 50%
6) Change Line color to "No Color"
7) Click "OK"
8) Repeat steps 2 through 7 for Title Master if one exists
9) Close master view
C) See how changing color schemes affects the appearance of your slides
(background as well as slide contents (title, text)
1) Format -> Slide Design
2) Click on "Color Schemes" link at top of Slide Design task pane
3) Apply different color schemes to the slide and see how the slide
(including background) adjusts accordingly
This works bests with background images that don't contain big regions of
widely varying contrast. For example a landscape of dark forest trees
(green) with bright light blue sky, so that bottom half of background is
very dark and top half is very light, is not the best type of background
image for this approach.
You might also experiment with different transparency percentages
(depending on your specific background image).
John Langhans
Microsoft Corporation
Supportability Program Manager
Microsoft Office PowerPoint for Windows
Microsoft Office Picture Manager for Windows
For FAQ's, highlights and top issues, visit the Microsoft PowerPoint
support center at:
http://support.microsoft.com/default.aspx?pr=ppt
Search the Microsoft Knowledge Base at:
http://support.microsoft.com/default.aspx?pr=kbhowto
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