<p>Probably really obvious, but I just can't figure out how to type in it. Help?</p>
<p>The creator of the PDF document has to enable it to be typed into by viewers.</p>
<p>Or else you have to buy the full Adobe Acrobat Suite.</p>
<p>So you can't fill out online apps without printing them and writing everything in?</p>
<p>On line apps have fields in which you type. You can't change the protected part of the document (like the questions). If it's a real PDF, like some supplements are, then you do have to print them. That's expected.</p>
<p>These threads might help you:</p>
<p>The Common App's website lets you fill it out online. But why would you fill it out as a PDF? You should apply online anyway, which usually shows you a filled out version of the application once you submit it.</p>