You can add a Document to your Page in one of the following ways:
1. To upload a Document, please follow the steps below:
a. Go to the Page Profile.   
b. Click “Documents” tab on the Page Profile. You might have to click on the “More” tab to expand the menu bar to see “Documents”.
c. Click on “Add a Document” link from the top left corner of the “Documents” tab to add a document.
d. Fill up the form to add a document.
e. Browse and choose a file for your document of allowed file types (like pdf, txt, etc.).
f. Click on “Submit”, to add a document to your Page.

2. From the “Apps” section of your Page Dashboard, click on the “Add a Document” button and follow the steps from ‘d’ to ‘f’ as in case 1 above.