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To electronically sign a PDF on Windows, open Adobe Reader and click “Fill & Sign” to add your signature. On a Mac, open the PDF in Preview and click “Sign.” On Android, iPhone, or iPad, download Adobe Fill & Sign, and then tap the “Signature” button.
You’ve been emailed a document, and you have to sign it and send it back. You could print out the document, sign it, and then scan it back in and email it. But there’s a better, faster way.
We’ll show you how to quickly add your signature to any PDF document, saving it as a standard PDF file that can be read anywhere. You can do this on Windows, Mac, iPad, iPhone, Android, Chrome OS, Linux—whatever platform you prefer.
Electronic Signatures, Not Digital Signatures
First, let’s straighten out some terminology. This article deals with electronic signatures, not digital signatures, which are something else entirely. A digital signature is cryptographically secure and verifies that someone with your private signing key (in other words, you) has seen the document and authorized it. It’s very secure, but also complicated.
An electronic signature,…
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