[pdftex] Re: hiding optional content

RS w.m.l at gmx.net
Sat Jan 7 02:01:06 CET 2006

Hi Pawel,

On 06.01.2006 11:03, Pawel Jackowski wrote:
> afaik only Acrobat 6 and hi supports displaying PDF 1.5 optional 
> content. Meybe you can fake macros supporting layers to so called marker 
> content
>     /Subpage BMC ... EMC
> stuff? Similar in syntax, doesn't affect the preview, introduced in PDF 
> 1.3 I think... 

Hm, I've had a look at the specs but I don't see how I could use marked 
content to do the same thing as optional content.

What I would need is something like a switch that makes older viewers 
ignore all content. In the meantime, I've come across the BX ... EX 
compatibility operators. However, they will only ignore unknown 
operators, not the content.


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