Open a PDF file at a specific page in MS Edge using Acrobat's command-line syntax.

acro2edge.vbs

' Name    : acro2edge.vbs
' Purpose : Open a PDF file at a specific page in MS Edge using Acrobat's command-line syntax.
' Details : VBScript for Windows Script Host, tested on Windows 10.
' Example : acro2edge.vbs /A page=3 "C:\...\file.pdf"

Option Explicit

Dim WshShell, strEdge, k
Set WshShell = WScript.CreateObject("WScript.Shell")
Dim numArg : numArg = WScript.Arguments.Count
Dim arrArg() : ReDim arrArg(numArg - 1)
Dim s1, s2 : s1 = """" : s2 = """ """

strEdge = "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"

For k = 0 to UBound(arrArg)
    arrArg(k) = WScript.Arguments.Item(k)
Next

If numArg = 0 Then
    WshShell.Run s1 & strEdge & s1, 1, False
ElseIf numArg = 3 And UCase(arrArg(0)) = "/A" Then
    WshShell.Run s1 & strEdge & s2 & "file:///" & arrArg(2) & "#" & arrArg(1) & s1, 1, False
Else
    WshShell.Run s1 & strEdge & s2 & Join(arrArg, s2) & s1, 1, False
End If

Use case: custom PDF viewer for Zotero, see here:
https://forums.zotero.org/discussion/88586/unable-to-open-zotero-link-to-pdf-with-page-number-in-microsoft-edge-chromium