PowerBuilder Requires Chilkat v11.7.0+

Add a CONFIDENTIAL Watermark to Every Page of a PDF

See more PDF Watermark Examples

Demonstrates the simplest watermark: a line of text across every page. "rotation" set to diagonal runs the text from the bottom-left corner to the top-right, computed for each page size, and "scale" with fit page sizes it to fill 80 percent of the page. The watermark is stored as a marked artifact by default, which means viewers show it, text extraction leaves it out, and it can be found and removed again later. Nothing is written until WriteFile is called. PowerBuilder

integer li_rc
long li_Success
oleobject loo_Pdf
oleobject loo_Json
oleobject loo_JsonOut

li_Success = 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 long_report.pdf

loo_Pdf = create oleobject
li_rc = loo_Pdf.ConnectToNewObject("Chilkat.Pdf")
if li_rc < 0 then
    destroy loo_Pdf
    MessageBox("Error","Connecting to COM object failed")
    return
end if
li_Success = loo_Pdf.LoadFile("qa_data/pdf/long_report.pdf")
if li_Success = 0 then
    Write-Debug loo_Pdf.LastErrorText
    destroy loo_Pdf
    return
end if

loo_Json = create oleobject
li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")

loo_Json.UpdateString("type","text")
loo_Json.UpdateString("text","CONFIDENTIAL")

//  An id of your own choosing, so that the watermark can be found and removed later.  One is
//  generated when you do not give one.
loo_Json.UpdateString("id","confidential")

loo_Json.UpdateString("color","#C00000")
loo_Json.UpdateNumber("opacity","0.25")
loo_Json.UpdateString("rotation","diagonal")
loo_Json.UpdateString("scale.fit","page")
loo_Json.UpdateNumber("scale.fitPercent","80")

loo_JsonOut = create oleobject
li_rc = loo_JsonOut.ConnectToNewObject("Chilkat.JsonObject")

li_Success = loo_Pdf.Watermark("add",loo_Json,loo_JsonOut)
if li_Success = 0 then
    Write-Debug loo_Pdf.LastErrorText
    destroy loo_Pdf
    destroy loo_Json
    destroy loo_JsonOut
    return
end if

//  The id, and the pages it was stamped on.  "pages" defaults to all.
Write-Debug "id: " + loo_JsonOut.StringOf("id")
Write-Debug "pages: " + loo_JsonOut.StringOf("pages")

li_Success = loo_Pdf.WriteFile("qa_output/report_confidential.pdf")
if li_Success = 0 then
    Write-Debug loo_Pdf.LastErrorText
    destroy loo_Pdf
    destroy loo_Json
    destroy loo_JsonOut
    return
end if

//  Sample output:

//  id: confidential
//  pages: 1-3


destroy loo_Pdf
destroy loo_Json
destroy loo_JsonOut