workbench getting attachments from pdf

[#1]

I started working with workbench 6.3. I want to know if there is a way or an example where I can get the attachments insde a PDF, can that be done in workbench 6.3? or what do you suggest?

thanks

aemuser

[#2]

workflowuser​ please help

[#3]

this thread is being answered in

creating assembly descriptor on aem forms 6.3 workbench