If you already have a PDF that you’d like to sign, double-click on it to open it in Preview.
Open the Preview App and capture your signature
In this article, we will review how you can use Preview to capture your signature using the iSight camera on a Mac, then use it in Pages documents, to sign PDF documents, and as an image in your signature in the Mail app.
As we have written about in previous articles, Preview is a valuable tool in OS X that does not get a lot of press.
