Navigate to the pdf or image that you need to update. When you mouseover it, the drop down arrow will appear:
Click on the arrow to reveal the dropdown menu:
Click on Edit. The following screen should appear:
Click on Browse and choose the new version of the file (on your own computer or on another server). Click on the Open button.
When you return to the Cascade screen, click the Submit button and the file will be updated.
Published on and maintained in Cascade CMS.