To view the list of documents contained in a PDF document with Adobe Acrobat Reader DC on a Mac OS X system, with the file open in Acrobat Reader DC, click on File then select Properties and then click on the Fonts tab.
A command-line interface (CLI) method you can use to determine information about the fonts used in a PDF file on an OS X system without installing any additional software beyond what is provided with the operating system is to use the strings command to search for "FontName" and then pipe the output through the grep and then cut utilities as shown below:
$ strings CRQ000001195248_DCS.pdf | grep -i FontName | cut -f5 -d"/" Arial-BoldItalicMT ArialMT ABCDEE+Calibri Arial-BoldMT Arial-ItalicMT ABCDEE+Calibri-Bold ArialMT ABCDEE+CALIBRI,Italic ABCDEE+ARABIC#20TYPESETTING ABCDEE+ARIAL#20ROUNDED#20MT#20BOLD Times#20New#20Roman,Bold ABCDEE+Arial-Black $
