Color Management for PDFs in Acrobat

Gernot,<br /><br />"1. Is this Output Intent profile embedded ?"<br /><br />In this particular PDF, the answer is 'yes'.<br /><br />I Opened the PDF with a demo of PDFCanopener and I saw, inside the DestOutputprofile:<br /><br /><pre><br /><code><br />Cos Type: Stream<br />Indirect Object:<br /> ID: 953<br /> Generation: 0<br />Stream Bytes: 281<br />Decoded Bytes: 560<br />Encoding: PDFText<br /><br /><Start Stream><br />0ADBEmntrRGB XYZ Ï<br />acspAPPLnone<br />öÖÓ-ADBE<br /><br /><br />cprtü2desc0kwtpt<br />bkpt°rTRCÄ<br />gTRCÔbTRCärXYZô<br />gXYZbXYZ<br />textCopyright 1999 Adobe Systems Incorporated<br />descAdobe RGB (1998)<br /><br /><br />XYZ óQÌXYZ <br />curv3curv3<br />curv3XYZ <br />O¥üXYZ 4 ,XYZ &1/¾<br /><End Stream><br /></code><br /></pre><br /><br />And PitStop can extract the profile.<br /><br />If you open picture by picture with Photoshop, no one has an ICC profile assigned. Same in Acrobat-PitStop: Plain RGB with no profile.<br /><br />Hope this answers question(1).<br /><br />PS. I inserted some carriage returns in the code as it seems to defile the forum display.

Larry,

thanks for your post - very helpful.
1. Test images, self explaining.
2. Information that Adobe Reader is color managed
3. Reader 9 can co-exist with Acrobat 7.
I'll download Reader 9 and see, how the color management
has to be parameterized.

Best regards --Gernot Hoffmann

Gernot, sorry--too busy to experiment.

I did a quick test with a gamma 1.0 rgb image and Adobe Reader 9 behaves as expected, i.e., with color management. You might want to do some screen grabs to study the issue further. Reader 9 can coexist with Acrobat 7 in Windows XP. I'll email you my test images.

Regards, Larry

The official name is 'Adobe Reader'.

Is anybody able to extract here
http://www.adobe.com/products/acrobat/matrix.html
the information, whether Adobe Reader is equipped
with Color Management ?

This is the PDF (2MB) with all images in AdobeRGB,
no profiles embedded per image, but with the global
Output Intent AdobeRGB(1998):
http://www.fho-emden.de/~hoffmann/labproof15092008.pdf

Best regards --Gernot Hoffmann