[Blindmath] Extracting bitmap images from pdf files

[Jamal Mazrui]

Xpdf is a free package of utilities that includes pdfimages.exe in the 
Windows distribution.  Based only on the documentation (I have not tried 
it), it may do what you want.  I would be curious to know.

The home page of the project is at

http://www.foolabs.com/xpdf/

A direct download URL is

ftp://ftp.foolabs.com/pub/xpdf/xpdfbin-win-3.03.zip

Jamal

On Wed, 25 Jan 
2012, Richard Baldwin wrote:

> Date: Wed, 25 Jan 2012 12:07:56 -0600
> From: Richard Baldwin <baldwin at dickbaldwin.com>
> Reply-To: Blind Math list for those interested in mathematics
>     <blindmath at nfbnet.org>
> To: BlindMath Mailing List <blindmath at nfbnet.org>,
>     accessibleimage at freelists.org
> Subject: [Blindmath] Extracting bitmap images from pdf files
> 
> Many blind students receive electronic textbooks in pdf format.
>
> Many textbooks contain lots of images.
>
> Many images are poorly described in textbooks.
>
> Various ways to convert bitmap images into tactile images are available --
> some fairly good, some not so good, some very poor. However, regardless of
> the quality of the conversion to tactile format, you must have the original
> image file in order to get anything.
>
> I have tried four or five different online file conversion sites in an
> attempt to find a clean way that a blind student can extract the images
> from a pdf textbook file without success. Different sites have different
> problems, but they all seem to have some kind of problems that make it very
> difficult to extract the images from pdf files.
>
> Has anyone identified an online site or downloadable program that is
> available either free or at a reasonable price to cleanly extract the
> images from pdf files, which often range up to 10 or more megabytes  or
> more in size?
>
> Thanks,
> Dick Baldwin
>
> --
> Richard G. Baldwin (Dick Baldwin)
> Home of Baldwin's on-line Java Tutorials
> http://www.DickBaldwin.com
>
> Professor of Computer Information Technology
> Austin Community College
> (512) 223-4758
> mailto:Baldwin at DickBaldwin.com
> http://www.austincc.edu/baldwin/
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