Visual FoxPro Requires Chilkat v11.7.0+

Put a Letterhead Behind the First Page of a PDF

See more PDF Watermark Examples

Demonstrates the pdfPage type, which places a page of another PDF as the watermark. It is the way to use a letterhead, a cover overlay or a vector logo that was saved as a PDF, and unlike an image it stays sharp at any size because it is drawn, not resampled. "zOrder" set to back puts it behind the existing content, where a letterhead belongs, and "pages" set to first restricts it to page one. Visual FoxPro

LOCAL lnSuccess
LOCAL loPdf
LOCAL loJson
LOCAL loJsonOut

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 two_page_memo.pdf

*  The PDF used in this example is available at letterhead.pdf

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

loJson = CreateObject('Chilkat.JsonObject')
loJson.UpdateString("type","pdfPage")
loJson.UpdateString("pdf.path","qa_data/pdf/letterhead.pdf")

*  The page of the source PDF to use (1 by default).  "match" instead of a number places source
*  page n on target page n, which suits a set of per-page backgrounds.
loJson.UpdateInt("pdf.page",1)

*  Behind the memo's own text, on page one, scaled to the page.
loJson.UpdateString("zOrder","back")
loJson.UpdateString("pages","first")
loJson.UpdateString("scale.fit","page")
loJson.UpdateString("id","letterhead")

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

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

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

*  Sample output:

*  id: letterhead pages: 1

RELEASE loPdf
RELEASE loJson
RELEASE loJsonOut