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Topic: Adjusting annotation & text string position & widt
Conf: (P-PDF) Developers, Msg: 32388
From: mcwong
Date: 1/8/2002 05:58 PM

Hi

I am working on a program that process the following
input:

1) PDF converted from Word format
2) One single text string which also has an annotation
associated with it.

For example:


Pattern
-------

The text string is basically just "Pattern" in this
case and is position at the central of the page.
The associated annotation can either be /Filespec
or /URI type.

The text string itself is also underlined because in
the original Word document, it's of Hyperlink type.

My questions:

1) If the text string "Pattern" is replaced with a
different length (ie. longer or shorter )
string, what is the right way to work out the new
central position X coordinate position ? Is there
any PDF operator that does this already ?

2) Because the "underlining" effect of the text string
is also a result of the Hyperlink type in Word
document, how can I change that underlining length
in PDF ? I have kind of manuallyplayed around a bit
with the 're' operator following the text string and
was able to see the underlining shifts around a bit
but I have yet to understand properly how it can
be accurately calculated on the fly.


A snippet of the PDF file looks like the following:

BT
% .... some other stuff up here ...
/TT6 1 Tf
15.96 0 0 15.96 222.4 456.32 Tm
0 0.216 0.596 sc
0 Tw
[(Test)]
ET
222.4 453.56 150.6 1.68 re
f
% ... some other stuff down here ...
ET


Can any PDF expert please offer some help here ?

Thanks in advance.

MCW