You can attach photo, audio, and document files to your pages, but with the following limitations: Only 20MB or less per file can be attached and only up to 30 files can be attached. When a file cannot be attached, a message will be displayed that the “file cannot be attached.” To attach a file to your page, first click on the File button (paperclip icon) at the top right of the page. Then click on the plus (+) button at the top right corner of the Attachment pop-up. Select the file you want to attach and click on the OK button.
<add a file to page>
Make sure you save your page by clicking on the Save button at the top right before closing the window.