PDF is the widely used format for storing and sharing documents. Its ability to store and preserve format and contents in the file makes it one of the most preferred applications by most of the publishers and online journals. In order to view or edit PDF document you need to have Adobe Acrobat installed on your computer. This software offers only minimal privileges so you cannot change the contents of the document. However there are number of free alternatives available which allow you to view and edit PDF documents easily.
Free alternatives for Adobe Acrobat are of various types like online, desktop, command line, etc., applications. Using these tools you can create, edit and manipulate PDF documents according to your convenience. Here are some most use free alternatives for Adobe Acrobat applications.