png file edges are jagged

[Baret]

I am inserting a logo into poweropoint that needs to work on a number of
different background colours. I have saved the logo as a png file and
inserted into powerpoint at 100% of size it appears and at 144dpi.
Unfortunately curved edges of letters appear jagged - is there a way of
cleaning up the png file and achieving a crisper logo???

 

[John Wilson]

Did you make the logo in photoshop? I have had some success with using much
higher resolutions with png files (eg 300 dpi)
--

Did that answer the question / help?
_____________________________
John Wilson
Microsoft Certified Office Specialist
http://www.technologytrish.co.uk/ppttipshome.html

 

[Baret]

originally the logo was created in illustrator, outlined and then copied into
photoshop. If it is created originally in photoshop will it help?

I tried it at 300dpi and it is a lot better, but not perfect so thanks a lot
for that.

 

[glennrp]

I tried it at 300dpi and it is a lot better, but not perfect so thanks a lot
for that.

Keep going then: save at 600 or 1200 dpi and then scale the PNG down to
50% or 25%. That should effectively anti-alias the curved edges.

Glenn

 

[Baret]

Thnaks alot that helped too. What I am trying to do is make this work cross
platform. The PC is now looking great but it does not look good on the Mac -
do you know why this would be? I am using Powerpoint X release 1 for Mac.