Thanks. Your answer is highy appreciated.

Yes! I understood and actually suspected that the XObject's were the most
likely way to preserve the needed information. I didn't know that OPI 1.3
and 2.0 required separate considerations, however, which is very useful for
me to know for future projects.

Now, I guess there is currently no alternative to running the PostScript
through the OPI before PDF'ing than switching the RIP.

Thanks again.

Best regards
Jacob SchŠffer
DTP/Technical support

----------------------------------------------------------------------------
-------------------

Grafikhuset (House of Graphics)
Prs. Maries AllŽ 17
DK-1908 Frederiksberg C
Denmark
Tel: +45 33 25 19 58.
Fax: +45 33 25 19 57
Web: http://www.grafikhuset.dk

Grafikhuset is a full service prepress center offering
* Imaging
* Desktop publishing of any kind
* Web design and automation
* Prepress troubleshooting
* Education and training
* PostScript programming
* Specialized software for the graphical industry.



> -----Original Message-----
> From: Martin Bailey [SMTP:martinb@harlequin.co.uk]
> Sent: 28. januar 2000 11:58
> To: pdf-prepress-l@infomania.com; pdf@lists.pdfzone.com;
> pdf-prepress-l@infomania.com; Acrobat Talk
> Subject: Re: [PDF-PP-L] In-RIP issue: "Preserve OPI comments" switch
> turn images into for m objects?
>
> At 08:03 28/01/00 , Jacob SchŠffer wrote:
> >Why does the Job Options -> Advanced tab -> "Preserve OPI Comments" turn
> >images into PDF Form obejcts, and is there any way to avoid this
> behaviour
> >and keep OPI comments at the same time?
>
> It doesn't actually turn images into PDF form objects, it adds an extra
> layer into the equation. Instead of the Contents stream referring directly
>
> to the image XObject, it refers to a Form XObject, the contents of which
> then refer to an Image XObject.
>
> That's pretty much required to support OPI 2.0 and OPI 1.3 in parallel.
>
> For OPI 2.0 the effective Contents stream before the image must set up the
>
> correct scaling and translation and colour space before running the high
> res image data, but that should not be done for OPI 1.3.
>
> So the OPI 1.3 object is attached to the form. The contents of the form
> set
> the transforms, colour space etc, and then call the image. The OPI 2.0
> object is attached to the image.
>
> I hope you understood that. I just re-read it and it's clear as mud to me
> :-)
>
>
>
> Regards
>
> Martin Bailey
>
> -------------------------------------------------------------
> Senior Technical Consultant martinb@harlequin.com
> Digital Print & Publishing +44 1223 873800
> Harlequin http://www.harlequin.com
> -------------------------------------------------------------
> If my views didn't usually coincide with those of my employer
> I probably wouldn't work here, but I am not a spokesman for
> Harlequin and the buck stops with me for what I say.
> -------------------------------------------------------------

-----------------------------------------------------------------------
To Unsubscribe: <mailto:acrobat-off@blueworld.com>
Archives : <http://listsearch.blueworld.com/acrobattalksearch.lasso>