The Portable Document File (PDF) format has come a long way since it was created by Adobe in the early 1990s, with it now being one of the most popular document file types. The main advantage it offers over a regular Document file (.doc) is the inability to edit any content in it. Thus, the file cannot be (easily) edited / changed by anyone else, which provides a secure medium for your data. Although there are various PDF editing tools for Windows/Mac/Linux, there’s a lack of good PDF-editing apps for iOS. This brings some difficulties for those who are fond of… Read more