Microsoft Outlook for Mac is now free to use for Apple MacOS users. This version may be installed from the AppStore or downloaded directly. No Office 365 subscription is required, but advertisements will be visible without one.
Microsoft has added some basic editing features to change a PDF file within its Edge web browser. Features include adding text and markings, and erasing changes. PDF file changes are visible once the Save button is clicked. More information is available at the FAQ page.