Looking for app recommendations for saving texts and emails to PDF

I work for a real estate team in Washington state and we are required to save and submit all text and email communications to our brokerage because of our states laws for real estate files. I am having a hard time finding decent apps that allow you to save or backup texts and emails and convert them to PDF. I have tried the CloudHq gmail add on and it works but is 15$ per month for more than 50 emails and does not work for texts. Have you used anything that you like or feel is worth the money? TIA!