Try Foxit Reader 4.3, which allows you to add text to any PDF. After installing the program, simply open your PDF in Foxit instead of Adobe Reader, then click Comments, Typewriter Tools, Typewriter ...

Many workplaces and educational institutions have completely switched from paper documents to digital ones. Consequently, Mac users are increasingly dealing with PDFs and other e-document file formats ...

PDF Expert by Readdle is my favorite app to collect, read, and annotate PDF documents on the iPad, and thanks to a series of updates in the past months it’s also become a solid alternative to iBooks ...