[pdftex] insert a pdf comment

Victor Ivrii vivrii at gmail.com
Mon Jun 12 04:02:11 CEST 2006

On 6/11/06, ivo welch <ivowel at gmail.com> wrote:
> dear pdftexperts.
> how do I insert a comment into the pdf file.
>   \pdfliteral{
>    \% this is a comment
>   }


(and look into earlier discussion in this list)

Also look at package   cooltooltips

> does not work, because the \ makes it into the pdf file, and
> presumably wreaks havoc.  omitting it won't help, either.  probably
> simple.  maybe add a primitive \pdfcomment{this file is a bad
> attempt.}.
> some more minor suggestions to the pdf team as I am reading the docs:
> I believe most \pdf* variables are expanded at compile time.  for
> example, \pdfuniformdeviate is such a variable.  if pdf had a random
> number generator build in, it could be executed at pdf display time.
> if some variables have actions at pdf-run time, maybe they should have
> a slightly different name syntax (e.g., \Pdf... instead of \pdf).  so,
> are there any variables that the pdf interpreter makes available?  A
> pdfxform seems to be one such creature.
> I am of course very pleased that the base set of compile-time variable
> is becoming richer in pdftex.  Of course, far and away my biggest hope
> is that we will get a \pdfexec that is nothing but a clean
> "\write18+\input" combination, but without the need to write a file
> and then reparse it back.  (I hope taco hoekwater will figure out how
> to do this; he noted he had an idea after my pdftex feature
> suggestion.)
> I also just noted a new suggestion report that it should be possible
> to define a \pdfxform that does not suffer compression (i.e., escape
> the \pdfcompresslevel), perhaps \pdfxform*.  This would allow me to
> create the equivalent of a post-latex but pre-run pdf variable (sed
> 's/myxformstring/withsomethingquick/'), and at very low cost---as long
> as I make sure I do not change the byte count.  (I hope standard pdf
> does not keep a checksum that I would also have to change.)
> further, reading the pdftex docs, what is an article thread??
> regards,
> /iaw
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Victor Ivrii, Department of Mathematics, University of Toronto

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