To save emails from Gmail as PDF in a simple and reliable way, you can use the SysInfo Gmail Backup Tool. This software allows you to select your Gmail emails and export them directly into PDF format. It supports saving emails from folders like Inbox, Sent, or even custom labels. You can also choose to save the attachments separately or include them in the PDF file.
Read more: https://www.sysinfotools.com/gmail-backup.php