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Topic: Re: Manipulating Text in a PDF file.
Conf: (P-PDF) Developers, Msg: 57704
From: LeonardR
Date: 5/29/2002 05:27 PM

At 08:23 PM 9/5/2001 +1000, p-pdf-developer Listmanager wrote:
>I am trying to develop a server based solution that can extract data
>from a PDF file.

Looks like you are making progress though...


>I am unable to extract data in a proper format. I am manipulating
>the Text positioning operators (Tm,TD,T*..etc) to achieve this.
>It looks like PDF files store data in a random order or does
>it follow any rules.

The order of page content in a PDF is determined by the creator of
the PDF, and does not have to follow any logical order and may even be
spread out over multiple streams.

If you wish to extract the textual information from a PDF, you
will need to build your own "text grid" (from data and attributes) to
determine positions.


Leonard

----------------------------------------------------------------------------------
Leonard Rosenthol
Director of Software Development (215) 922-3509 (voice)
Appligent, Inc. (formerly Digital Applications) (610) 284-4233 (fax)

PGP Fingerprint: 8CC9 8878 921E C627 0BC1 15BB FC19 64A9 0016 1397


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