AutoIt Requires Chilkat v11.7.0+

Page Numbers, Dates and the File Name in a PDF Watermark

See more PDF Watermark Examples

Demonstrates the placeholders a text watermark understands, each replaced per page as the watermark is added: {page} is the page number, {pages} the page count, {date:FORMAT} the current local date and time, and {filename} the name of the file that was loaded. Two braces give a literal brace. pageNumber.start sets what {page} is on the first page, which is how a numbering that ignores a cover is produced, and pageNumber.style formats both {page} and {pages} as decimal, romanUpper, romanLower, letterUpper or letterLower. AutoIt

Local $bSuccess = False

;  This example requires the Chilkat API to have been previously unlocked.
;  See Global Unlock Sample for sample code.

;  The PDF used in this example is available at four_pages.pdf

$oPdf = ObjCreate("Chilkat.Pdf")
$bSuccess = $oPdf.LoadFile("qa_data/pdf/four_pages.pdf")
If ($bSuccess = False) Then
    ConsoleWrite($oPdf.LastErrorText & @CRLF)
    Exit
EndIf

$oJson = ObjCreate("Chilkat.JsonObject")
$oJson.UpdateString("type","text")
$oJson.UpdateString("text","Page {page} of {pages}  -  printed {date:yyyy-MM-dd HH:mm}  -  {filename}")
$oJson.UpdateString("id","pagefoot")
$oJson.UpdateString("position.align","bottom")
$oJson.UpdateNumber("position.margin","24")
$oJson.UpdateNumber("font.size","9")
$oJson.UpdateString("color","#505050")

$oJsonOut = ObjCreate("Chilkat.JsonObject")
$bSuccess = $oPdf.Watermark("add",$oJson,$oJsonOut)
If ($bSuccess = False) Then
    ConsoleWrite($oPdf.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("footer pages: " & $oJsonOut.StringOf("pages") & @CRLF)

;  Roman numerals that start at i on page 2, so that a cover page is not numbered.
$oPdf2 = ObjCreate("Chilkat.Pdf")
$bSuccess = $oPdf2.LoadFile("qa_data/pdf/four_pages.pdf")
If ($bSuccess = False) Then
    ConsoleWrite($oPdf2.LastErrorText & @CRLF)
    Exit
EndIf

$oJson2 = ObjCreate("Chilkat.JsonObject")
$oJson2.UpdateString("type","text")
$oJson2.UpdateString("text","- {page} -")
$oJson2.UpdateString("id","roman")
$oJson2.UpdateString("pages","2-")
$oJson2.UpdateInt("pageNumber.start",1)
$oJson2.UpdateString("pageNumber.style","romanLower")
$oJson2.UpdateString("position.align","bottom")
$oJson2.UpdateNumber("font.size","10")
$bSuccess = $oPdf2.Watermark("add",$oJson2,$oJsonOut)
If ($bSuccess = False) Then
    ConsoleWrite($oPdf2.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("roman pages: " & $oJsonOut.StringOf("pages") & @CRLF)

$bSuccess = $oPdf.WriteFile("qa_output/four_pages_numbered.pdf")
If ($bSuccess = False) Then
    ConsoleWrite($oPdf.LastErrorText & @CRLF)
    Exit
EndIf

;  Sample output:

;  footer pages: 1-4
;  roman pages: 2-4