How can I read a bitmap out of a PDF

[OZI]

Hi,
does anyone of you know how I can read out a bitmap out of a pdf file. Today I saw a software which can do this but I do not know how.
I want to compare two bitmaps with each other and one of the bitmaps is inside a pdf.

Is there any way how I can read this bitmap out ?

thanks
Oliver

[RobertH]

hello oliver,

there is no native library, which supports the operation you want to perform.

there exist some libraries for parsing PDF-files for example fpr perl:
http://search.cpan.org/~antro/PDF-111/PDF/Parse.pm

i found also a general article about parsing PDFs:
http://www.pongacomputing.net/articles/parsing-pdf-documents

so if you want to extract information out of PDF-files you will need some library, which provides you this functionality.

kind regards,
Robert H
NI germany

[OZI]

Hi Robert,
thanks a lot for your help. I will check this.

Thanks
Oliver