IAC – How to merge every PDF in a given folder into one

This method takes all of the PDFs in the folder c:acrobatdocstomerge and
merges them together to form a file called complete.pdf.

This code sample is posted here for the general benefit of the PDF development community. Attribution and usage guidelines are as noted in the code source; please respect the wishes of the author when using this code.

Option Explicit ' Force variable declaration
' Author : Planet PDF
' E-Mail: info@debenu.com
' Date : 08 March 1998
' Description: JoinAllAcrobatDocsInDir
' This vb method uses IAC to join all PDF documents in a folder
' to a predetermined filename
' This method / function should be extended to suit the requirements
' of an organisation
Public Const PDF_WILDCARD = '*.pdf'
Public Const PDF_DIRECTORY = 'c:acrobatdocstomerge'
Public Const JOIN_FILENAME = 'complete.pdf'
Sub JoinAllAcrobatDocsInDir()

Dim AcroExchApp As Object, AcroExchPDDoc As Object, _
AcroExchInsertPDDoc As Object
Dim strFileName As String, strPath As String
Dim iNumberOfPagesToInsert As Integer, _
iLastPage As Integer
Set AcroExchApp = CreateObject('AcroExch.App')
Set AcroExchPDDoc = CreateObject('AcroExch.PDDoc')

' Show the Acrobat Exchange window

' Set the directory / folder to use

' Get the first pdf file in the directory
strFileName = Dir(strPath + PDF_WILDCARD, vbNormal)

' Open the first file in the directory
AcroExchPDDoc.Open strPath + strFileName

' Get the name of the next file in the directory [if any]
If strFileName <> '' Then
strFileName = Dir

' Start the loop.
Do While strFileName <> ''

' Get the total pages less one for the last page num [zero
iLastPage = AcroExchPDDoc.GetNumPages - 1
Set AcroExchInsertPDDoc = CreateObject('AcroExch.PDDoc')

' Open the file to insert
AcroExchInsertPDDoc.Open strPath + strFileName

' Get the number of pages to insert
iNumberOfPagesToInsert = AcroExchInsertPDDoc.GetNumPages

' Insert the pages
AcroExchPDDoc.InsertPages iLastPage, AcroExchInsertPDDoc, 0,
iNumberOfPagesToInsert, True

' Close the document

' Get the name of the next file in the directory
strFileName = Dir

' Save the entire document as the JOIN_FILENAME using SaveFull
[0x0001 = &H1]
AcroExchPDDoc.Save &H1, strPath + JOIN_FILENAME

End If

' Close the PDDoc

' Close Acrobat Exchange
End Sub

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