iTextSharp - Add password to PDF (vb) RSS

• • Reply
  fizzystutter

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  15 Points

  193 Posts

  iTextSharp - Add password to PDF (vb)

  Aug 03, 2008 08:09 AM|fizzystutter|LINK

  Hi,

  I'm just starting out with the iTextSharp PDF dll. I'm wanting to add a password to the pdf filethat I produce, but I can't find anywhere on the net how I add the password.

  I've found the following, but I can't convert it:

  writer.setEncryption(PdfWriter.STRENGTH128BITS, "userpass", "ownerpass", PdfWriter.AllowCopy | PdfWriter.AllowPrinting);

  
  My page so far is:

  Imports System.IO

  Imports iTextSharp.text

  Imports iTextSharp.text.pdf

  Partial Class PDF

  Inherits System.Web.UI.Page

  Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

  Dim ProposalID As String = Request.QueryString("ProposalID")

  Dim LevelsToGoBack As String = "Secure/"

  Dim WebsiteAddress As String = ConfigurationManager.AppSettings.Get("WebsiteAddress")

  Dim FileName As String = DateTime.UtcNow.Ticks & ".pdf"

  Dim myDocument As iTextSharp.text.Document

  myDocument = New Document(PageSize.A4)

  PdfWriter.GetInstance(myDocument, New FileStream(HttpContext.Current.Server.MapPath(LevelsToGoBack & "/Files/" & FileName), FileMode.Create))

   

  myDocument.AddTitle("Proposal")

  myDocument.AddAuthor("Me")

  myDocument.AddCreator("My Company")

  myDocument.AddSubject("Proposal ID " & ProposalID)

  myDocument.AddHeader("Proposal ID " & ProposalID, "Check Proposal Details")

  myDocument.Open()

  myDocument.Add(New Paragraph("hey"))

  Dim Logo As Image = Image.GetInstance(WebsiteAddress & "/MediaFiles/PDFLogo.png")

  myDocument.Add(Logo)

  Dim aTable As New Table(2, 2)

  aTable.AddCell("0.0")

  aTable.AddCell("0.1")

  aTable.AddCell("1.0")

  aTable.AddCell("1.1")

  myDocument.Add(aTable)

  myDocument.Close()

  End Sub

  End Class

  
  
  Any help would be appreciated
  
  Thanks
  James

• • Reply
  fizzystutter

  Member

  15 Points

  193 Posts

  Re: iTextSharp - Add password to PDF (vb)

  Aug 03, 2008 11:05 AM|fizzystutter|LINK

  Hi,

  I've managed to sort it with the following code:
  
  

  Dim document As Document = New Document(PageSize.A4, 50, 50, 50, 50)

  Dim writer As PdfWriter = PdfWriter.GetInstance(document, New FileStream(HttpContext.Current.Server.MapPath(LevelsToGoBack & "/Files/" & FileName), FileMode.Create))writer.SetEncryption(PdfWriter.STRENGTH128BITS, "mypass", Nothing, PdfWriter.AllowCopy)

  document.Open()

  document.Add(New Paragraph("This document is Top Secret!"))

  document.Close()
  
  
  Thanks James

• • Reply
  exoticankit

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  4 Posts

  Re: iTextSharp - Add password to PDF (vb)

  Aug 14, 2010 07:00 AM|exoticankit|LINK

  This code is amazing... now i won't be Crystal Report Supporter anymore. 

  using your lines now i can put password in secs...

  
  

  love the way you described.

  
  

  Cheers

• • Reply
  Code Jockey

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  Re: iTextSharp - Add password to PDF (vb)

  Feb 03, 2011 12:44 PM|Code Jockey|LINK

  Very useful - much thanks!

  In case anyone visiting here is wondering, you can also use the same member function on a pdfStamper [e.g. pdfStamperInstance.SetEncryption(...)]

• • Reply
  jagomezp1972

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  Re: iTextSharp - Add password to PDF (vb)

  Apr 18, 2017 01:30 AM|jagomezp1972|LINK

  Thanks fizzystutter, you make my day.......