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Can I see if someone opened my email attachment?

No. Once an attachment is downloaded, the file is on the recipient’s device and no tool can reliably see it being opened. Instead, HawkOpen shares the PDF as a tracked link; for now this is a preview until external file scanning is switched on.

Checked:

A HawkOpen PDF link records viewing sessions and active time on each page once the recipient agrees to it on the PDF page. You can set it to expire or limit the number of views, which you cannot do with an attachment.

PDF links per month: Free 5, Pro 10, Business without a monthly limit.

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