Apple's Calendar apps on the Mac, iPhone and iPad can share events so your schedule isn't ever any farther away than your fingertips. Turns out you can sync more than your appointments through Calendar; you can sync files that are attached to your events, too. Read on to learn how.
Attaching documents to Calendar events on your Mac is easy: Just drag the files you want to attach onto an event. Once they're attached you can access them from the Calendar app on your Mac, or from Calendar on your iPhone, iPad or iPod touch. That's really all there is to it.
Documents you attach to events sync from your Mac to your iOS devices
Why would you want to attach files to appointments, you ask? How about if you need driving directions for an area where you may not always have a reliable wireless data connection -- like in the mountains. If you need to keep track of documents for appointments just attach them to a calendar event. Since Calendar doesn't care what type of file you attach to events you could even use this trick as a way to copy documents from your Mac to your iPhone or iPad in a pinch.
You can view synced event attachments on your iPhone and iPad