Nothing specific to Pulse SMS, but you can print any web page. Therefore, you can also print Pulse SMS conversations.
To do this,
- Open the web app in your browser,
- Sign in to your account,
- Select a conversation,
- Right-click on the page and select Print.
This also allows you to save the conversation as a PDF. Then, during the print stage, any browser will enable you to save the PDF version of the content instead of printing it.