Visual FoxPro 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. Visual FoxPro

LOCAL lnSuccess
LOCAL loPdf
LOCAL loJson
LOCAL loJsonOut
LOCAL loPdf2
LOCAL loJson2

lnSuccess = 0

*  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

loPdf = CreateObject('Chilkat.Pdf')
lnSuccess = loPdf.LoadFile("qa_data/pdf/four_pages.pdf")
IF (lnSuccess = 0) THEN
    ? loPdf.LastErrorText
    RELEASE loPdf
    CANCEL
ENDIF

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

loJsonOut = CreateObject('Chilkat.JsonObject')
lnSuccess = loPdf.Watermark("add",loJson,loJsonOut)
IF (lnSuccess = 0) THEN
    ? loPdf.LastErrorText
    RELEASE loPdf
    RELEASE loJson
    RELEASE loJsonOut
    CANCEL
ENDIF

? "footer pages: " + loJsonOut.StringOf("pages")

*  Roman numerals that start at i on page 2, so that a cover page is not numbered.
loPdf2 = CreateObject('Chilkat.Pdf')
lnSuccess = loPdf2.LoadFile("qa_data/pdf/four_pages.pdf")
IF (lnSuccess = 0) THEN
    ? loPdf2.LastErrorText
    RELEASE loPdf
    RELEASE loJson
    RELEASE loJsonOut
    RELEASE loPdf2
    CANCEL
ENDIF

loJson2 = CreateObject('Chilkat.JsonObject')
loJson2.UpdateString("type","text")
loJson2.UpdateString("text","- {page} -")
loJson2.UpdateString("id","roman")
loJson2.UpdateString("pages","2-")
loJson2.UpdateInt("pageNumber.start",1)
loJson2.UpdateString("pageNumber.style","romanLower")
loJson2.UpdateString("position.align","bottom")
loJson2.UpdateNumber("font.size","10")
lnSuccess = loPdf2.Watermark("add",loJson2,loJsonOut)
IF (lnSuccess = 0) THEN
    ? loPdf2.LastErrorText
    RELEASE loPdf
    RELEASE loJson
    RELEASE loJsonOut
    RELEASE loPdf2
    RELEASE loJson2
    CANCEL
ENDIF

? "roman pages: " + loJsonOut.StringOf("pages")

lnSuccess = loPdf.WriteFile("qa_output/four_pages_numbered.pdf")
IF (lnSuccess = 0) THEN
    ? loPdf.LastErrorText
    RELEASE loPdf
    RELEASE loJson
    RELEASE loJsonOut
    RELEASE loPdf2
    RELEASE loJson2
    CANCEL
ENDIF

*  Sample output:

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

RELEASE loPdf
RELEASE loJson
RELEASE loJsonOut
RELEASE loPdf2
RELEASE loJson2