Hello,
I have a SharePoint document library, My Requirement is when user add PDF file on the document library the event receiver fire and read contents inside pdf file programmatically. After the start workflow according to the result of event receiver.
Thanks
Akash Anand

Paolo AriazziPosted Sep 18, 2014, 3:08 AM
If your question is about handling events in apps for SharePoint, see these links:
http://msdn.microsoft.com/en-us/library/office/jj220048%28v=office.15%29.aspx
http://msdn.microsoft.com/en-us/library/office/jj220051%28v=office.15%29.aspx
If what you need is a way to extract text from the PDF inside the event handler, see this example that uses leadtools.
http://support.leadtools.com/CS/forums/ShowPost.aspx?PostID=43894Manesh GolekarPosted Sep 7, 2014, 10:29 PM
You can use iTextSharp for reading content
http://www.codeproject.com/Tips/387327/Convert-PDF-file-content-into-string-using-Csharp