This can be done easily with the MacSonik OneNote Converter Tool. I was looking for the same option when I needed smaller file sizes. This tool allows you to convert OneNote files into formats like PDF, DOC, DOCX, HTML, PNG, and GIF. While converting, you can choose to include or exclude attachments based on your needs. It also supports batch conversion, so you can process multiple files at once. I later used those files in email clients like Outlook and Thunderbird without any issues. The tool maintains data accuracy and formatting throughout the process. It also offers a simple interface, making it easy for beginners. If you want flexibility in conversion options, the OneNote Converter Tool is a great choice.