Extracting Text from 2 Column PDFs

[Yogesh <yo...@gmail.com>]

Hello,

I am extracting text from 2 column PDF documents. For some documents, the
text is extracted properly (column wise). While for some it is extracted
line wise. i.e line of 1st column is merged with line of 2nd column instead
of next line of 1st column.

What might be the reason? How can I correct it?

Thanks,

-Yogesh

Re: Extracting Text from 2 Column PDFs

[Ad...@swmc.com]

There's a nice patch which will improve how PDFBox detects which words go 
together which will be released later this month.  I believe it's in the 
1.4.0-snapshot right now.

FYI, the reason probably is related to how close the columns are to one 
another.  If they're about the same distance apart as a space, then the 
code has no way of knowing if it's the next word or the next column.  It 
it's a lot of space it should be fine, and if it's somewhere in between, 
it may detect it properly or it may not.  The recent patch should make 
this grey area much more reliable.

---- 
Thanks,
Adam



From:
Yogesh <yo...@gmail.com>
To:
PDFBox - Mailing List <us...@pdfbox.apache.org>
Date:
12/05/2010 11:39
Subject:
Extracting Text from 2 Column PDFs



Hello,

I am extracting text from 2 column PDF documents. For some documents, the
text is extracted properly (column wise). While for some it is extracted
line wise. i.e line of 1st column is merged with line of 2nd column 
instead
of next line of 1st column.

What might be the reason? How can I correct it?

Thanks,

-Yogesh



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