PDFsharp & MigraDoc Foundation

PDFsharp - A .NET library for processing PDF & MigraDoc Foundation - Creating documents on the fly
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 Post subject: Reading a pdf document
PostPosted: Wed Feb 03, 2016 10:23 am 
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Joined: Wed Feb 03, 2016 10:12 am
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Hello,

I am looking for a library to open a pdf file and get a list of all the operators with their parameters.
I understand that PdfSharp is for creating Pdf documents but I was wondering if there is a way do that with PdfSharp?

Thank you
Yannis


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PostPosted: Wed Feb 03, 2016 10:41 am 
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Joined: Mon Oct 16, 2006 8:16 am
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Location: Cologne, Germany
Hi, Yannis,

You can get a string containing all instructions and all parameters, but have to do the parsing yourself.
There is a third-party library that helps with text extraction, maybe that is a good starting point.
https://www.nuget.org/packages/PdfTextract/
It is GPL and I don't know where you can find the source code.

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Thomas Hoevel
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PostPosted: Wed Feb 03, 2016 11:25 am 
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Thank you Thomas!
Do I have to build the string or can I get from PdfSharp?
Is it a class property?


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PostPosted: Wed Feb 03, 2016 11:51 am 
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ymak wrote:
Do I have to build the string or can I get from PDFsharp?
Is it a class property?
I don't know. PdfTextract does it. Look how they do it.

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Thomas Hoevel
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PostPosted: Wed Feb 03, 2016 12:54 pm 
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ok
Thank you


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PostPosted: Thu Sep 07, 2017 9:08 am 
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I tried to use the code from the PdfExtract package to read text.
It works fine in many cases, but I have some PDFs where the output is weird.

The output from the attached PDF is the following:

Code:
\0\u0003\0\u0004\0G\0O\0U\0R\0:\0\u0003\0\u000f\0R\0O\0O\0H\0+
\0\u0003\0\u001d\0W\0[\0H\07\0\u0003\0H\0O\0E\0D\0L\0U\0D\09 \0\u0003\0\u0003\0\u0004\0G\0O\0U\0R\0:\0\u0003\0\u000f\0R\0O\0O\0H\0+ \r\n


I assume those are encoding problems.
I am a dummy if it comes to PDFs, some guidance on how I could extract the text correctly with PdfSharp would be helpful.

Thanks,
Alex


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hello-world.zip [28.05 KiB]
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