Zotero is a free reference management software package, also known as bibliographic software, which enables you to:
If you have installed Zotero on your own machine, depending on your set-up, Zotero will automatically update to version 6. Alternatively, you can download the new version from Zotero.org. The changes three significant changes with version 6:
(1) Zotero now has a built-in PDF reader. If you prefer to use another PDF reader, select it from Zotero Preferences as shown below:
(2) Zotero also has a built-in notes extractor, so you no longer need to download Zotfile. Once you have highlighted text on your PDF, added comments and save it. Then select 'Add Note from Attachment' as shown below.
(3) You can now add your notes to MS Word Document. The full citation will also be transferred to your document.
You can find more information on the new features of Zotero 6 on the Zotero Blog.