Hi, if i want to send invoices by paper in DL envelops do you have any templated aligned with the window of the envelope ?

Sure you can download the pdf.
You can do this from most sections once "Advanced Invoicing', app is installed.
If you don't want to pay for the app, just click on Client view and you'll see the link for pdf there.

Hope that helps.

Sure. Click on invoice settings and click edit template.
You can create as many templates as you want. They're all part of the app

Cool thanks