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Topic: Re: PDF 1.5 printing via Acrobat 5 (Via Email)
Conf: (P-PDF) Prepress and Print, Msg: 99850
From: LeonardR
Date: 11/6/2003 04:25 AM

At 3:57 AM +1100 11/6/03, p-pdf-prepress Listmanager wrote:
>If JPEG2000 is u sed, you won't see the mage in Acrobat 5. If more than 8
>bit image data are present I assume (but don't know) that you either won;
>t see the image or some 'interesting' presentation of it.

In both cases, Acrobat 5 will report an error and then fail
to draw the image :(. It will also display a message (again) about
using newer features and the need to update.

> v4 ICC profiles
>may cause a hiccup in Acrobat 5 or may simply be ignored.

Haven't tried that - don't know what it will do.

>If compressed
>object streams are used for page description parts of the PDF you won't
>see any pages, if it is used for other stuff (e.g. structure information
>etc.) the display )and printing of the pages should not be affected.

Either Acrobat will fail to read the document or it won't
matter - since the only tool that creates this stuff (that is in any
serious use) is Acrobat and it either does all or just structure.

> If DeviceN is used with more than 8 colorants you'll probably see some
>warning (invalid color space or something like that)

Again, I believe you will get an error - though I've not
tried. You have a file that demonstrates this, Olaf??

Leonard Rosenthol
Chief Technical Officer
PDF Sages, Inc. 215-629-3700 (voice)
215-629-0789 (fax)

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