Powerpoint object resolution

[Jed]

I have a problem with powerpoint presentations that
contain graphics that I created in CambridgeSoft Chemdraw
7.0. The resolution of the graphics displayed is not good
and in order to have graphics of acceptable resolution I
have to "ungroup" all of the graphics. Although this
solution provided a slide show of acceptable quality, it
is not a very convenient solution. Is there some way to
get powerpoint to display chemdraw objects in higher
resolution so that these objects can retain their
propoerties for future editing? When powerpoint displays
a graphic that is imported from a program like chemdraw
how is it displaying the graphic? Is there some way to
change the way program displays graphics or the
resolution of these graphics? I can send examples slides
with the original chem draw objects and the corresponding
slides where those objects have been ungrouped if it
helps resolve this problem.

 

[John Langhans [MSFT]]

Hello Jed,

It sounds like ChemDraw is an OLE server application and the objects you
are inserting into PowerPoint are ChemDraw OLE objects.

It's the nature of OLE objects that the OLE server applications provide to
client applications (like PowerPoint) a "presentation" (picture) of their
data for the client application to display and print. The client
application has no control over the format or quality of that
"presentation". It's taken "as is". By converting the OLE object into
Microsoft Office Drawing objects PowerPoint is able to use the Office
rendering engine for drawing objects to give you a higher quality
experience.

It might be possible that ChemDraw provides some options as to the quality
of the "presentation" it generates when it creates it's OLE objects. For
example, Excel OLE objects can be influenced (to some degree) by changing
the print options in Excel before the OLE object is created.

Basically, to get a better "presentation" for the object you need to look
to the server application (ChemDraw), not to any PowerPoint options, to see
how this might be accomplished.

NOTE: Some OLE server applications provide a raster "presentation" which
means that the quality at which it will be displayed in PowerPoint is
dependent upon the size of the object relative to the slide size and the
resolution at which the slide show is being displayed.

John Langhans

Supportability Program Manager
Microsoft Office PowerPoint for Windows
Microsoft Office Picture Manager for Windows

This posting is provided "AS IS" with no warranties, and confers no rights.

Use of any included script samples are subject to the terms specified at
http://www.microsoft.com/info/cpyright.htm

 

[Jed]

It seems that ChemDraw is providing PowerPoint with
objects of more than one quality because when the slides
are printed the quality is fine, but when they are
displayed in a slide show on a projector or any monitor
the quality is lower.

 

[TAJ Simmons]

Jed,

It sounds like powerpoint is not "anti-aliasing" / "smoothing" your vector
graphics. When you un-group them it *is* smooting them.

That would explain the poor on-screen quality and the good print quality

Cheers
TAJ Simmons
microsoft powerpoint mvp

awesome - powerpoint backgrounds,
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