Images (charts) to PDF

I need to send a PDF via mail with severals Charts.

I know how to send a mail.

The thing is how can I do to get the charts into a PDF file.

In my BSP im using <graphics:chart>

I have seen /people/sap.user72/blog/2004/11/10/bsphowto-generate-pdf-output-from-a-bsp

But this approach is using Smartform to display Data of an internal table, if there is no way of importing the charts that I see in BSP to PDF. Can I use a program in my CRM backend System that displays the sames charts that are in my page and somehow send it to spool or OTF and in the BSP Call that ?

Thx