topic Re: transform pdf, return new version in Alfresco Archive

transform pdf, return new version

abruzzi — Fri, 11 Apr 2014 22:09:37 GMT

We have an OCR server (ABBYY Recognition Server) that can perform its work over a SOAP connection. I've built a transformation for PDF to TXT. Basically, the script that is called by the transformation first looks for a text layer and exports and returns that using pdftotext if available skipping

Re: transform pdf, return new version

romschn — Sat, 12 Apr 2014 18:23:00 GMT

If i am understanding your requirement correctly then you want to setup a business rule in alfresco wherein when a PDF is uploaded to a space, it will be sent to OCR server for processing. And OCR server after processing the PDF will add the OCR text as a text layer on that PDF and will send the updated PDF back.
Once the processed PDF is returned from OCR server, it should be added as a minor version to the original PDF.

Is this your requirement?

Re: transform pdf, return new version

abruzzi — Sat, 12 Apr 2014 23:35:00 GMT

Exactly. The OCR side I know how to do, and the SOAP is fairly easy (if I have to do SOAP in JavaScript, that's a bit trickier). I'm just not sure where to start with Alfresco.

Re: transform pdf, return new version

romschn — Mon, 14 Apr 2014 10:36:31 GMT

Okay. You will have to create custom java based action which will do the required processing for you. In this action, make a remote call to OCR server and get the processed PDF. Once the PDF is returned using VersionService add the new PDF as a new minor version on the original PDF. Also register this new action so as it is available while defining a business rule.