help! How to view my work in pdf

I haven't had the chance to work with PDF with CF 8 and I'm not sure where to start.

I'm currently producing a report from a DB and I'm showing it in a table but I was just told to add a link where our user can click and get that same report in PDF. Users may want to share the report, keep the report, etc

I did some reading and a brief testing but still confuse. Should I use CFDOCUMENT tags with format attribute set to "pdf"? and what other attributes do I need for this task? When I ran mypdftest.cfm with the following codes, I got my pdf:

<cfdocument format="pdf">

Hello this is a test

</cfdocument>

but when I added a query on my second test and try to out put the result, I got my pdf but instead of showing the query result, I got strange characters

everywhere.

<cfdocument format="pdf">

    <cfquery name="test" datasource="#application.dsn#">

     Select * from some table where LastName = 'Allen'

   </cfquery> 

     <table>

      <tr>

         <td>First Name</td>

        <td>Last Name</td>

      </tr>

     <cfoutput query="test">

      <tr>

         <td>#FName#</td>

        <td>#LName#</td>

      </tr>

     </cfoutput>

     </table>

</cfdocument>

Can anyone help????