Open the required file in the viewer which you need to save as PDF.
Next, follow the steps for navigating to File Viewer More Options.
In the 'More Options' menu, select the 'Save as PDF' option (under the 'Print' category) to download files (in any format supported by Asite File Viewer) including markups if any and save them to your local folder in PDF file format.
Next Article: View Attachments & Associations on a File Open in Viewer