png graphics looseing transparency!

  • Thread starter Thread starter Lou
  • Start date Start date
L

Lou

Hi,

I've just upgraded my Photoshop 6 to CS and now when
inserting graphic's (png formated files) in to Powerpoint
slides I am loosing the transparency. The bit that was
previously transparent turns black.

Help is this a Photoshop issue or is there something I
need to change in powerpoint?

Thanks
Lou
 
http://tinyurl.com/4kaom

Try turning off the color management profiles in Photoshop. I run Photoshop
CS at the office, and I have no problems with transparency in PPT 2003 or
2000 there. (Been working with a *lot* of transparent PNGs there lately,
too.) But I don't use any color managment in Photoshop, either...
 
Photoshop's colour management is definitely the cause of this...it seems
that it tries to colour manage the alpha channel, which confuses PowerPoint.
Or something like that.
And helpful Adobe change how to deal with it in every version...
Even if you've got colour management turned off you may need to remove the
colour profile associated with the PNGs you've already created. In
Photoshop 7 you do this with Image>Mode>Assign profile, choosing 'don't
colour manage this document'. They changed this in CS but I can't check how
right now.

Echo S said:
http://tinyurl.com/4kaom

Try turning off the color management profiles in Photoshop. I run Photoshop
CS at the office, and I have no problems with transparency in PPT 2003 or
2000 there. (Been working with a *lot* of transparent PNGs there lately,
too.) But I don't use any color managment in Photoshop, either...

--
Echo [MS PPT MVP]
http://www.echosvoice.com
presenter, PPT Live '04
Oct 10-13, San Diego http://www.powerpointlive.com

Lou said:
Hi,

I've just upgraded my Photoshop 6 to CS and now when
inserting graphic's (png formated files) in to Powerpoint
slides I am loosing the transparency. The bit that was
previously transparent turns black.

Help is this a Photoshop issue or is there something I
need to change in powerpoint?

Thanks
Lou
Click to expand...
Click to expand...
 
The dialog is the same in Photoshop CS, Adam.
--

Sonia Coleman
Microsoft PowerPoint MVP Team
Autorun Software, Templates and Tutorials

Adam Crowley said:
Photoshop's colour management is definitely the cause of this...it seems
that it tries to colour manage the alpha channel, which confuses PowerPoint.
Or something like that.
And helpful Adobe change how to deal with it in every version...
Even if you've got colour management turned off you may need to remove the
colour profile associated with the PNGs you've already created. In
Photoshop 7 you do this with Image>Mode>Assign profile, choosing 'don't
colour manage this document'. They changed this in CS but I can't check how
right now.

Echo S said:
http://tinyurl.com/4kaom

Try turning off the color management profiles in Photoshop. I run Photoshop
CS at the office, and I have no problems with transparency in PPT 2003 or
2000 there. (Been working with a *lot* of transparent PNGs there lately,
too.) But I don't use any color managment in Photoshop, either...

--
Echo [MS PPT MVP]
http://www.echosvoice.com
presenter, PPT Live '04
Oct 10-13, San Diego http://www.powerpointlive.com

Lou said:
Hi,

I've just upgraded my Photoshop 6 to CS and now when
inserting graphic's (png formated files) in to Powerpoint
slides I am loosing the transparency. The bit that was
previously transparent turns black.

Help is this a Photoshop issue or is there something I
need to change in powerpoint?

Thanks
Lou
Click to expand...
Click to expand...
Click to expand...
 
Adam Crowley said:
Photoshop's colour management is definitely the cause of this...it seems
that it tries to colour manage the alpha channel, which confuses PowerPoint.
Or something like that.
And helpful Adobe change how to deal with it in every version...
Even if you've got colour management turned off you may need to remove the
colour profile associated with the PNGs you've already created. In
Photoshop 7 you do this with Image>Mode>Assign profile, choosing 'don't
colour manage this document'. They changed this in CS but I can't check how
right now.
Click to expand...

Thanks for this info, Adam.

I just checked in Photoshop CS, and it seems to be the same --
Image/Mode/Assign Profile and choose "Don't Colo(u)r Manage This Document."

Echo
 
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