title: Does Commercial use of GhostScript as Saas needs a licence ?
body: <p>I was working on a project. In which a user can upload PDF and convert it into images and So that i have used GhostScript dll (gsdll32.dll). Now in my application i want to charge from users as monthly subscription so that i can provide them more features.</p>
  
  <p>But i neither have any knowledge about the licencing terms nor about ghostscript tearms &amp; conditions.
  So do i need to purchase any licence regarding Or <strong>is there any other free C# library, that can be used for pdf processing, which i can use in a commercial applicatoni <em>without acquiring any licence ?</em></strong></p>
  
  <p>Well i am preferring any free c# library for regarding (Premium Saas or direct application selling).</p>
  
  <p>Thank you
  If anyone having real time experience regarding above, Please help me out.</p>