From an analytics and data perspective, I would suggest HelpRange. T provide secure document management so it goes above and beyond a simple PDF viewer. For example, you can see the number of page views, time on page, downloads, and an engagement score, helping you understand which pages are the most engaging. Plus, there is the added feature of document heat mapping so now you can see and know exactly which on-page content is engaging viewers the most. There’s also the security and access controls that really help to keep you in control of your PDF documents which generally are lost to the internet once you send it out.
Draw Your Signature Online is a desktop app for both Android and iPhone/Apple iPad. It also comes with Draw Your Signature PDF which is very simple and convenient way to set up a signature online — it comes with various templates provided by E-signature, and you can download it and save it to get the most realistic version of your signature. The main purpose of this app is to create your own signature. There are three tools available to set up and draw your signature, and it is really easy to use them — after you select your favorite tools you're done with setting up your signature online, and can download your signature online (PDF, TXT, pub, HTML, Doc Book or Text) and keep it as a reminder of the information you want to sign to get a digital signature. You can access your Signature Book via Desktop Web-browser too. Draw.