Know the second they open it.
Stop wondering if your PDF landed. Send any document as a leveair link, watch it open in real time with a read receipt — then update it or take it back whenever you want.

Stop guessing
An attachment disappears. A link reports back.
See it. Track it. Prove it.
One link carries the whole record.
Send it, watch it open, see every view, update the file, and revoke it — all from the same link, with the activity logged the whole time.
Questions, answered
How do I know when someone opens my PDF?+
Send it as a leveair link instead of an attachment. The moment they open it you get a read receipt, plus a time-stamped log of every view and download.
Does the recipient need an account to open it?+
No — they open the link in their browser in one tap. No login, no app.
Can I see what they did, not just that they opened it?+
Yes — opens, views, and downloads, each time-stamped and tied to the recipient.
What if I sent the wrong version?+
Update the file behind the same link, or take it back entirely — anytime, even after it's been opened.
Never send into the void again.
7-day free trial. $29 a month after, every feature included. No credit card to start — send your next file as a link you can actually track.