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Re: [css-page-3] 'marks' and 'bleed'

From: Cramer, Dave <Dave.Cramer@hbgusa.com>
Date: Mon, 21 Oct 2013 19:10:24 -0400
To: Florian Rivoal <florian@rivoal.net>, "www-style@w3.org" <www-style@w3.org>
Message-ID: <CE8B145E.3EE96%david.cramer@hbgusa.com>
On 10/21/13 4:16 PM, "Florian Rivoal" <florian@rivoal.net> wrote:


>On Mon, Oct 21, 2013, at 20:41, Håkon Wium Lie wrote:
>>  > Another issue for us is how far the page marks are from the page box.
>>  > Commercial printers sometimes want this value to be larger than the
>>bleed
>>  > amount. Our major printer wants all marks to be at least 18pt from
>>the
>>  > page box, even though the bleed amount is 9pt. PrinceXML has a
>>  > "prince-trim" property which used to affect this (its behavior has
>>changed
>>  > in current versions).
>>
>> In the interest of avoiding stacks of properties, could we find one
>> descign that works for all/most printers?
>
>I would ask that the crop marks and cross marks be entirely outside of
>the bleed.

I think a minimal set of properties would be:

1. bleed. By the way, I worry that negative values for bleed might cause
difficulties with the resulting PDFs. I don't know anything about PDF
internals, but Acrobat certainly can't set the bleed box to be smaller
than the trim box. Would a negative bleed violate the PDF spec?
2. offset‹distance from the trim box to the inside edge of the crop/cross
marks. This value is generally larger than the bleed amount, so marks
don't print in the bleed area. R.R. Donnelly, who I believe are the
largest commercial printer in the U.S., asks for 18 points of offset. Most
other printers are happy with 12 points. But these kinds of things are
deal-breakers.

In most cases, the marks extend 24pt. Is anyone aware of differing
requirements for this?

One user on the Prince forums asked to be able to add a margin outside the
crop marks, but I'm not aware of a printer that requires this.

>
>
>I would also prefer that we remove this requirement: "This property
>(bleed) only has effect if crop marks are enabled.", and get a way of
>showing the bleed without displaying the crop marks.

Agreed.

Thanks,

Dave



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Received on Monday, 21 October 2013 23:10:53 UTC

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