PowerBuilder Requires Chilkat v11.7.0+

PDF Footnotes in Markdown: Inline, at the End, or Dropped

See more PDF Text Extraction Examples

Demonstrates the "footnotes" option of the "markdown" operation. Small-print notes at the foot of a page are kept where they are ("inline", the default), gathered at the end of the document ("end"), or left out ("none"). 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 two-page PDF used in this example is available at footnotes.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/footnotes.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_JsonOut = create oleobject
li_rc = loo_JsonOut.ConnectToNewObject("Chilkat.JsonObject")

//  Page 1 has two superscript references in the text and the two notes in small print at its foot;
//  page 2 has a third.
li_Success = loo_Pdf.ExtractText("markdown",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

Write-Debug "---- footnotes: inline (default) ----"
Write-Debug loo_JsonOut.StringOf("markdown")

loo_Json.UpdateString("footnotes","end")
li_Success = loo_Pdf.ExtractText("markdown",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

Write-Debug "---- footnotes: end ----"
Write-Debug loo_JsonOut.StringOf("markdown")

loo_Json.UpdateString("footnotes","none")
li_Success = loo_Pdf.ExtractText("markdown",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

Write-Debug "---- footnotes: none ----"
Write-Debug loo_JsonOut.StringOf("markdown")

//  Sample output:

//  ---- footnotes: inline (default) ----
//  <!-- page 1 -->
//  
//  # The Lens on Loan
//  
//  The society located a fourth-order lens of the correct period at a museum1 in the next county, and an agreement to loan it for ten years was signed in November.2 The lens will be lit with a low-wattage electric lamp rather than oil, and it will be displayed as a historic light rather than registered as an aid to navigation.
//  
//  1 The county maritime museum, which holds three lenses from decommissioned lights. 2 The loan is renewable and carries no fee; the society insures the lens.
//  
//  <!-- page 2 -->
//  
//  # Public Access
//  
//  The grounds opened to visitors on weekends from July. Nearly three thousand people climbed the tower over the summer,3 with no incidents.
//  
//  3 Counted at the entrance by the volunteers on duty.
//  
//  ---- footnotes: end ----
//  <!-- page 1 -->
//  
//  # The Lens on Loan
//  
//  The society located a fourth-order lens of the correct period at a museum1 in the next county, and an agreement to loan it for ten years was signed in November.2 The lens will be lit with a low-wattage electric lamp rather than oil, and it will be displayed as a historic light rather than registered as an aid to navigation.
//  
//  <!-- page 2 -->
//  
//  # Public Access
//  
//  The grounds opened to visitors on weekends from July. Nearly three thousand people climbed the tower over the summer,3 with no incidents.
//  
//  1 The county maritime museum, which holds three lenses from decommissioned lights. 2 The loan is renewable and carries no fee; the society insures the lens.
//  
//  3 Counted at the entrance by the volunteers on duty.
//  
//  ---- footnotes: none ----
//  <!-- page 1 -->
//  
//  # The Lens on Loan
//  
//  The society located a fourth-order lens of the correct period at a museum1 in the next county, and an agreement to loan it for ten years was signed in November.2 The lens will be lit with a low-wattage electric lamp rather than oil, and it will be displayed as a historic light rather than registered as an aid to navigation.
//  
//  <!-- page 2 -->
//  
//  # Public Access
//  
//  The grounds opened to visitors on weekends from July. Nearly three thousand people climbed the tower over the summer,3 with no incidents.


destroy loo_Pdf
destroy loo_Json
destroy loo_JsonOut