title: Creation of PDF file using itextSharp
body: <p>Hi
   I am creating an ASP.net website where some articles can be uploaded. I need that my users can get PDF version of it by clicking on a button. For this functionality I am using itextSharp.
      I am considering the following two options.
  1. I will create the PDF file once(on first request) and reuse it always by checking for the existence of it. 
  2. I will create it on the fly and delete it as soon as the PDF file is delivered to the client.
  The first approach will lead to faster PDF delivery where as the second approach will lead to saving space. Can anyone please tell me which of the options is better?</p>
  
  <p>I am also wondering if this can be possible without saving the PDF on the server in the first place. So can anyone reply me as soon as possible.</p>
  
  <p>Thanks
  Dipa</p>