Question: I'm building what will be a PDF in Sketch 3. 

I want to create a button (a rectangle box with "sign up" inside) that launches a mailto link when the person reading it clicks on it. 

I can't figure out how to 1) add links in Sketch, or 2) make the entire button (including the border of the rectangle box) clickable, vs just the text portion. 

Any help is appreciated!

Answer: 
After creating PDF without links, open it in Adobe Acrobat and choose the place where you want to link like in the image below:

[![enter image description here](https://i.stack.imgur.com/qZuY7.png)](https://i.stack.imgur.com/qZuY7.png)

Then choose Create Link in the menu and select the option "Open a Web Page":
[![enter image description here](https://i.stack.imgur.com/F6Edl.png)](https://i.stack.imgur.com/F6Edl.png)

Click Next and you will be prompted with a text box. Fill it with "mailto:person@address.com" without quotation marks. And you'll be done!

[![enter image description here](https://i.stack.imgur.com/9l6ED.png)](https://i.stack.imgur.com/9l6ED.png)

Hope it helps!
A simple solution is for this problem is here

<https://youtu.be/WLggIppVE1w>