[DVIPDFMx] /Rect [...] of pdf annotation too big

[Jin-Hwan Cho]

Dear Alexander Grahn,

You are right that the annotations created with dvipdfmx are larger  
than you expected.
This feature came from the Mark Vick's dvipdfm which is the origin of  
dvipdfmx.

Actually dvipdfm and dvipdfmx have their own configuration file,

$TEXMF/dvipdfm/config/config (dvipdfm)
$TEXMF/dvipdfmx/dvipdfmx.cfg (dvipdfmx)

Here, you can find an option "g 1". That option controls the margin  
size of annotations.
So if it was specified by "g 1", any annotation has left margin 1bp  
and right margin 1bp.

To turn off this option, you can change the configuration file by  
giving "g 0".
Or, at the time when you run dvipdfmx, try "dvipdfmx -g 0 DVI-NAME".

I thought that many people does not want to have extra margin. So in  
the dvipdfmx.cfg
of the CVS version, the option "g 1" was commented out. But, still  
TeXLive has that
option. I will report this one to Karl Berry.

Best regards, ChoF.

On Mar 18, 2009, at 12:40 AM, Alexander Grahn wrote:

> Hi,
>
> I noticed that annotations in PDFs created with dvipdfmx are by 2 bp
> larger in each direction than specified in the pdf-special `annot'.
>
> Here is a minimal example:
>
> \ifx\pdfoutput\undefined
>  \special{pdf:annot width 10bp height 5bp depth 5bp <<
>    /Type/Annotation /Subtype/Link /H/I
>>> }%
> \else%
>  \ifnum\pdfoutput=1
>    \pdfannot width 10bp height 5bp depth 5bp {%
>      /Type/Annotation /Subtype/Link /H/I
>    }%
>  \fi%
> \fi%
> \bye
>
> When run through TeX/dvipdfmx, an annotation with
>
>  /Rect [71 763.82 83 775.82]
>
> is produced. It has an extension of 12bp instead of 10 bp in each
> direction.
>
> On the other hand, pdftex produces a 10bp by 10bp annotation, as  
> expected:
>
>  /Rect [72 764.89 82 774.89]
>
> In the case of my animate package, where I put widget annotations  
> tightly
> together in a row in order to create animation controls, this leads to
> overlapping buttons if the dvipdfmx route is taken.
>
> Where does dvipdfmx define the extra amount to be added to the size
> arguments of the  pdf:ann special? Is there a way to retrieve this  
> value
> from within TeX, e. g. from some \dimen register?
>
> Thanks for your advice,
>
> Alexander
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