Find a great PDF to use with your students? But it is just not quite perfect? Want to make a slight alteration? DocHub allows you to edit PDFs. Check out this short video example on some of the cool features! (Keep in mind if you have permission to alter the original.)
Go to the Chrome Web Store/Extentions. Search for DocHub. Select "Add to Chrome". The extension will appear above your bookmarks on the right.
The new document can then be downloaded or uploaded to your Google Drive, shared or emailed.