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RE: mirror copy of CSS2.1

From: Alex Mogilevsky <alexmog@exchange.microsoft.com>
Date: Sat, 1 Sep 2007 10:04:12 -0700
To: Christoph Päper <christoph.paeper@crissov.de>, www-style CSS <www-style@w3.org>
Message-ID: <04F36FB4ED0F85459AA447F72711526FFF58F9485C@DF-GRTDANE-MSG.exchange.corp.microsoft.com>

It is an interesting observation. I tend to think however that unusual page number in this particular document is a mistake.

> -----Original Message-----
> From: www-style-request@w3.org [mailto:www-style-request@w3.org] On
> Behalf Of Christoph Päper
> Sent: Saturday, September 01, 2007 9:00 AM
> To: www-style CSS
> Subject: Re: mirror copy of CSS2.1
>
>
> Alex Mogilevsky:
> > Why are page numbers in PDF version of CSS 2.1 mirrored - odd
> > numbers on left pages and even on right? It is supposed to be the
> > other way, isn't it?
>
> Well, that depends.
>
> For books you want odd numbers on right pages, because the binding is
> on the left of the sheets and therefore the first page, like the
> cover, is a right one. After binding you often want the right margin
> of left pages and the left margin of right pages smaller than the
> other two, perhaps adding up to their size.
>
> If you shrink two (portrait) A4 pages to A5, so they fit on a single
> (landscape) A4 sheet, and put them in a folder, then you'll probably
> want the first and all other odd pages on the left. Book-like margins
> will result in a strange appearance.
>
> Sheets are put into folders in many different ways, by the way. Even
> if you just consider one logical per physical page, every sheet has
> two sides that may or may not be used for individual pages. You can
> put in the first sheet first or last, with the face up or down.
> So you may encounter folders where you begin at page /n-1/, which
> has /n/ on its back and so forth until at the end there is 1 before
> 2, others may be ordered logically 1 through /n/ only if you turn it
> around and open up the backcover.
>
Received on Saturday, 1 September 2007 17:04:26 GMT

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