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Creating .PDF fom .png file

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matuwe

Posted: Thu Mar 09, 2017 12:48 pm Post subject: Creating .PDF fom .png file

Master

Joined: 05 Dec 2007
Posts: 296

Hi , I need some guidance. I need to create a pdf file from an image .png file received. Is there anyway that I can do this without using a Java Compute node?

Thanks

mqjeff

Posted: Thu Mar 09, 2017 1:30 pm Post subject:

Grand Master

Joined: 25 Jun 2008
Posts: 17447

Sure.

You can write ESQL that knows the internal format and structure of a PDF file, and can then include the png file data in that.

It's probably a lot easier to use a JCN or .NET node to handle this for you....

Unless you already intimately know the structure and format of PDF documents.... Or have several months to learn that format and write code.
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matuwe

Posted: Thu Mar 09, 2017 2:15 pm Post subject:

Master

Joined: 05 Dec 2007
Posts: 296

Hi Thanks for the response.. Can I kindly ask which free pdf libraries could you recommend for this.. I only saw iText..

timber

Posted: Thu Mar 09, 2017 2:29 pm Post subject:

Grand Master

Joined: 25 Aug 2015
Posts: 1280

You'll get better answers from a site like StackOverflow - but you would be well advised to do some thorough research first.

adubya

Posted: Fri Mar 10, 2017 12:46 am Post subject:

Partisan

Joined: 25 Aug 2011
Posts: 377
Location: GU12, UK

Create a Java class which uses a library such as https://pdfbox.apache.org/ to create a PDF and embed a PNG into it. Then wrap this class up such that it can be called by ESQL as a PROCEDURE.
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