To add a file on the subpage, follow these steps;
Go to the "Files" section in the admin panel.
Right-click on the file and copy its address.
Go to the page tab
Open the page where you want to place the file. In the appropriate field, enter the text and highlight the phrase that will serve as a link to the specified file.
Press the appropriate button and enter the link to the file.
Click the ''Insert'' button.
Save the changes, so that the file is available on the selected subpage.
The link to the file is placed in the desired phrase and is ready for download.