On Thu, Jul 24, 2008 at 9:43 PM, Peter Münster <[EMAIL PROTECTED]> wrote:
> On Thu, Jul 24 2008, Wolfgang Schuster wrote:
>
>> > Enabling people to view the pdf preview version (limited, containing
>> > excerpts) before acquiring the full version.
>>
>> In this case the solution offered in the thread are no solution for your,
>> it's too easy for the customers to make the hidden content visible.
>
> Shouldn't it be very easy with MKIV, to replace the content to hide with
> whatever you want?
> Examples:
> - the replacement are only the corresponding line-skips
this is easy if the text is a complete paragraph and no linebreaks
are involved but it's going to be complicated with headers, linebreaks,
tables, figures etc.
> - the replacement are random letters printed in white
% engine=luatex
\definestartstop
[randomized]
[before={\bgroup\setcharactercasing[5]},
after=\egroup]
\starttext
\input knuth
\startrandomized
\input knuth
\stoprandomized
\input knuth
\stoptext
Regards,
Wolfgang
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