Macro to Get Page Count of PDF Files
SEE ON UPDATED ON THIS POST IN THE TIP OF THE NIGHT FOR APRIL 13, 2017.
There's some VBA code posted on this site,
https://www.mrexcel.com/forum/excel-questions/347911-visual-basic-applications-page-count.html

Press ALT + F11 from Excel in order to enter Visual Basic. Right click on a Module and select Insert . . . Module . Then paste the below code in. [You may want to copy the code directly from the mrexcel.com, as the Wix text editor may alter the formatting of the code so it doesn't work.]
On the line beginning My Path = , enter the path to the directory containing the PDFs that you need page counts for.

Press the play button and the macro will generate a list of the file names in column A and their page totals in column B.

Thanks to Haluk for posting this code!
Sub Test() Dim MyPath As String, MyFile As String Dim i As Long MyPath = "C:\TestFolder" MyFile = Dir(MyPath & Application.PathSeparator & "*.pdf", vbDirectory) Range("A:B").ClearContents Range("A1") = "File Name": Range("B1") = "Pages" Range("A1:B1").Font.Bold = True i = 1 Do While MyFile <> "" i = i + 1 Cells(i, 1) = MyFile Cells(i, 2) = GetPageNum(MyPath & Application.PathSeparator & MyFile) MyFile = Dir Loop Columns("A:B").AutoFit MsgBox "Total of " & i - 1 & " PDF files have been found" & vbCrLf _ & " File names and corresponding count of pages have been written on " _ & ActiveSheet.Name, vbInformation, "Report..." End Sub ' Function GetPageNum(PDF_File As String) 'Haluk 19/10/2008 Dim FileNum As Long Dim strRetVal As String Dim RegExp Set RegExp = CreateObject("VBscript.RegExp") RegExp.Global = True RegExp.Pattern = "/Type\s*/Page[^s]" FileNum = FreeFile Open PDF_File For Binary As #FileNum strRetVal = Space(LOF(FileNum)) Get #FileNum, , strRetVal Close #FileNum GetPageNum = RegExp.Execute(strRetVal).Count End Function