Every once in a while, a gem crosses your desk: one of those "how could I have lived without out this for so long" tools. For me, that's XODO PDF reader and annotator. Several years ago our family licensed the ridiculously-priced but-feature-packed Adobe PDF Professional XI; XODO competes quite nicely, either as a complement, or as a stand-alone in place of Adobe. If XODO was available back then, I wouldn't have bought the Adobe version.
Here's the quick take on what makes XODO a real winner. You can draw or type on it on major platforms (Windows, iOS, Chrome, Android, as well as an online application launcher) then save it. You don't even need to sign in to make it work. You can also add and remove pages from your PDF. Other than esoteric legal functions like Bates numbering, XODO does most of what everyday households need. In fact, the latest version also includes encryption. Think about how revolutionary this is. You open the form on your iPad, fill it in as you would a piece of paper, save it, then send it.
Here's the mystery: why is it free, and how does the company make money? Having tried it, I would certainly pay to have this product thrive.
To get your copy, go to your respective phone or tablet operating system: Apple App Store, Google Play, or the company website, www.xodo.com