Send a document as a PDF file on Mac
You can share a document as a PDF file using Mail, Messages, and iCloud Drive, and even add it to your Apple Books library.
On your Mac, open the document.
Choose File > Print.
Click the PDF pop-up menu, then do one of the following:
Send the PDF via Messages: Choose Send via Messages, then type a name, email address, or a phone number in the To field. Enter a message if you want, and press Return.
Save the PDF to iCloud Drive: Choose Save to iCloud Drive.
Send the PDF via email: Choose Send in Mail, type an email address in the To field, enter a message if you want, then click Send.
Add the PDF to your Apple Books library: Choose Add to Apple Books.