LAE

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Originally posted by: Tim Meagher

**Nodes released into this community are prototypes. They have gone through a minimum set of tests; therefore, we cannot guarantee that they will work as designed nor are they supported by any existing maintenance contracts.**


This prototype graph contains a simple node for extracting text from a PDF file.
This is not a feature complete PDF reader.
Rather, it enables the user to simply extract unformatted text from a PDF file from which text can be extracted.
It can also be used as an example of using a Java node to interface relatively easily with a 3rd party API - in this case, Apache's PDF Box.
The code required to interface with Apache PDF Box is also visible within the node, such that the interested user can modify this to perform more advanced text extraction if they wish.


REQUIREMENTS:

• One of:
  
  • Lavastorm 4.6 Professional Plus
  • Lavastorm 4.6 Workgroup with Java Node support (Developer Node Pack)
  • Lavastorm 4.6 Enterprise
• Apache PDF Box

INSTALLATION

• Download the attached BRG
• Download Apache PDF Box:
  
  • Go to http://pdfbox.apache.org/downloads.html
  • Download pdfbox-app-1.8.2.jar
  • Save this to your LAE Installation directory, under lib/java/ext/pdfbox-app-1.8.2.jar

RUNNING THE NODE

• Open the "Extract PDF Text" node
• Set the "Filename" parameter to point to a PDF file on the file system of the LAE server
• Run the node.

Attachments:
pdf.brg

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Originally posted by: subhankar102

Hi Tim,

Thank you for the useful information provided

I tried to run the node of yours using the pdf.brg graph and have downloaded the pdfbox app. Its just that the version of the pdfbox now available in the site is 1.8.10 and not 1.8.2. And there is no ext folder as well in the lavastorm directory, there is just lib/java.

One more important information would be that I use a client version of Lavastorm and not the server version. Does that make any change in the execution of the pdf.brg graph ?

Thanks
Subhankar

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Originally posted by: jegnj

This doesn't work with Lavastorm 6.1 using a pdf created by a word document. Also the code is hidden. Is there some way to see it? Thanks.

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Originally posted by: gmullin

I got a copy of pdfbox-app-1.8.2.jar from here and the node worked OK on v6.1.4 for me. I used test.pdf attached below, created as pdf from Excel.

If you go to the library view, you can view Tim's code in the node.

test.pdf

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Originally posted by: jegnj

pdfbox-app-1.8.2.jar is in the java/ext folder. I copied the attached pdf and this is what I get which is what I got before running it on a server.

ERROR: Unexpected error occurred during processAll while running the node: org/apache/fontbox/afm/AFMParser.
Error Code: brain.unexpectedNodeErrorDuring

I think this is LAL 6.1.48

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Originally posted by: gmullin

Only thing I can think of is that I had to place the jar file on the client and the same location on the server (unless you're using the desktop version).

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Originally posted by: jegnj

it is running on a server, not desktop.
I put copies of it in all the lavastorm java folders. This is what the log says.

<detail xsi:type="javaExceptionDetail">
<message>
<![CDATA[org/apache/fontbox/afm/AFMParser]]>
</message>
<class>
<![CDATA[java.lang.NoClassDefFoundError]]>
</class>

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Originally posted by: jegnj

Apparently you need the fontbox jar as well. Now it works!
how can I find or extract a copy of PDFReader.java? Thanks

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Originally posted by: Delnero

Originally posted by: jegnj
					

Apparently you need to read about Phen375 fontbox jar as well. Now it works!

how can I find or extract a copy of PDFReader.java?   Thanks
			

Hey jeg, did you or anyone else find out how to extract?