Just drag and drop it on top of Acrobat application icon. This will launch Acrobat Distiller and convert the file. In Windows, you can also right-click a file in and choose Convert to Adobe PDF.

When Distiller’s running you can drag and drop multiple files into the Distiller window to batch covert (and select conversion settings).
Alternatively, in Acrobat choose File > Create > Batch Create Multiple Files.
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