Scenario:
I have one custom object under that Attachment(standard) object is their I want to display All contents of attachment in pdf format.

Ex:Position is object
3 Attachemnts i attached 
Resume1
Resume2
Resume3
I need to display all 3 resumes in single pdf format.

 

I need a custom VF page.
when Convert button is clicked in Lead page, the new custom page should be redirected and that page should have convert button.
when clicking that button, it should be converted into Account,Contact and Opportunities.