Trying to find this preflight tool in Acrobat Pro DC

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Hello.  My many-page document has pages of different sizes.  The publisher that I use had this preflight tool that they use to identify individual page sizes. I have Acrobat Pro DC.  Do I have this tool?  If not how do I make a custom analysis tool?  Please see the 2 screen shots.

[Vikrant R]

Preflight is part of Acrobat. Use the Preflight dialog box to control all aspects of the preflight inspection. If the Print Production panel is not visible in the right pane, choose Tools > Print Production. Then choose Preflight in the right pane. See https://helpx.adobe.com/acrobat/using/analyzing-documents-preflight-tool-acrobat.html