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Topic: Re: page layout
Conf: (P-PDF) Developers, Msg: 57900
From: kt
Date: 5/29/2002 05:28 PM

>From: "Kapil"
>
>Name: kapil
>Age : 12 (x,y) ..Image....
> .----------.
> .----------.
> .----------.
> ............
>
>Name: sandeep
>Age : 43
>
>BT
>/F1 12 Tf
>1 0 0 1 18 252 Tm
>(Name: Kapil)Tj
>0 -12 TD
>(Age: 12)Tj
>0 -24 TD
>--
>---
>Now I'm in text mode and wanna go to graphics mode to draw the image. How
>can I do it using opertors? How will I get x in (x,y) which is the x
>coordinate from where image starts(without finding out width of "Age:
>12" in point units).





Kapil:

You can't. There are no functions to "query" the current matrix values or
get x,y info. You have to set the x,y yourself and keep track of text width
through font metrics. The operator list is in the PDF specification.
Examples are also in the Spec.

You must tell the viewer where to draw things. The viewer app doesn't
communicate back to the PDF document in any way.

This is why InDesign costs $700. The program logic to create good-looking
pages (in Postscript or in PDF) is extremely difficult and complex to
implement.



Kas Thomas

---------------------------------------
kt@acroforms.com www.acroforms.com
---------------------------------------



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