Online Convert - Convert files like images, video, documents, audio and more to other formats with this free and fast online converter.
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.
Wide Angle PDF Converter - Convert PDF documents to Word, PowerPoint, Excel, JPG and other formats!
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
CometDocs - Free online conversion service. Possible to determine unknown file format too.
Wondershare PDFelement - All-in-one PDF editor