Sub RemovePDFPassword()
Dim objApp As Object
Dim strFolderPath As String
Dim strPassword As String
strFolderPath = "" '<~~ Your path
strPassword = "" '<~~ Common password
Set objApp = CreateObject("AcroExch.App")
Dim objFolder As Object
Dim objFile As Object
Set objFolder = objApp.GetFolder(strFolderPath)
For Each objFile In objFolder.GetFiles("*.pdf")
objApp.OpenDocument strFolderPath & objFile.Name, strPassword
objApp.ActiveDocument.Save
objApp.ActiveDocument.Close
Next objFile
objApp.Exit
Set objApp = Nothing
End Sub