As it stands, a PDF cannot be embedded into an email. However, you can easily link to a PDF from an email - steps on this below!
1. Navigate to your studio name in the top right > click Assets.
2. In the Assets navigation bar > click Saved PDFs.
3. Click Upload a PDF > select the PDF you'd like to upload from your computer.
4. Once the PDF is uploaded, Marketing Automation will populate a unique URL for this PDF asset. Easily copy/paste this URL link into your email, and recipients will click the link and be quickly taken to your PDF hosted by Marketing Automation!