Pdf+ - Pdf+ is a reader for PDF documents, which are also known as Adobe Acrobat files.
Wondershare PDFelement - All-in-one PDF editor
Easy PDF - EasyPDF is a free online PDF conversion suite that can help you convert & create PDFs. Securely, anonymously and without any limitations.
Foxit PhantomPDF - Edit PDF files with our feature-rich PDF Editor. Download Foxit PDF Editor to convert, sign, scan / OCR & more. A speedy PDF Editor alternative to Adobe Acrobat.
FoxyUtils Online PDF Tools - All the PDF tools you need! Save time with our easy to use online tools to merge, split, convert, and edit PDF files.
Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.