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Convert HTML Email with Attachments to PDF | VB.NET
Program.vb:
VB
Imports System.Drawing.Printing Imports System.IO Imports System.Text Imports Bytescout.PDF Imports Bytescout.PDF.Converters Imports Font = Bytescout.PDF.Font Imports SolidBrush = Bytescout.PDF.SolidBrush Module Program Sub Main() Try ' Parse MessageContents using MsgReader Library ' MsgReader library can be obtained from: https://github.com/Sicos1977/MSGReader Using msg = New MsgReader.Outlook.Storage.Message("HtmlSampleEmailWithAttachment.msg") ' Get Sender information Dim from = msg.GetEmailSender(False, False) ' Message sent datetime Dim sentOn = msg.SentOn ' Recipient To information Dim recipientsTo = msg.GetEmailRecipients(MsgReader.Outlook.RecipientType.[To], False, False) ' Recipient CC information Dim recipientsCc = msg.GetEmailRecipients(MsgReader.Outlook.RecipientType.Cc, False, False) ' Recipient BCC information Dim recipientBcc = msg.GetEmailRecipients(MsgReader.Outlook.RecipientType.Bcc, False, False) ' Message subject Dim subject = msg.Subject ' Get Message Body Dim msgBody = msg.BodyHtml ' Prepare PDF docuemnt Using outputDocument As Document = New Document() ' Add registration keys outputDocument.RegistrationName = "demo" outputDocument.RegistrationKey = "demo" ' If you wish to load an existing document uncomment the line below And comment the Add page section instead ' pdfDocument.Load(".\existing_document.pdf") ' Add page Dim page As Page = New Page(PaperFormat.A4) outputDocument.Pages.Add(page) ' Default font and brush Dim font As Font = New Font(StandardFonts.Times, 12) Dim brush As Brush = New SolidBrush() ' Add Email contents Dim topMargin As Integer = 0 topMargin += 20 page.Canvas.DrawString($"File Name: {msg.FileName}", font, brush, 20, topMargin) topMargin += 20 page.Canvas.DrawString($"From: {from}", font, brush, 20, topMargin) topMargin += 20 page.Canvas.DrawString($"Sent On: {(If(sentOn.HasValue, sentOn.Value.ToString("MM/dd/yyyy HH:mm"), ""))}", font, brush, 20, topMargin) topMargin += 20 page.Canvas.DrawString($"To: {recipientsTo}", font, brush, 20, topMargin) If Not String.IsNullOrEmpty(recipientsCc) Then topMargin += 20 page.Canvas.DrawString($"CC: {recipientsCc}", font, brush, 20, topMargin) End If If Not String.IsNullOrEmpty(recipientBcc) Then topMargin += 20 page.Canvas.DrawString($"BCC: {recipientBcc}", font, brush, 20, topMargin) End If topMargin += 20 page.Canvas.DrawString($"Subject: {subject}", font, brush, 20, topMargin) topMargin += 20 page.Canvas.DrawString("Message body and attachments in next page.", font, brush, 20, topMargin) ' Convert Html body to PDF in order to retain all formatting. Using converter As HtmlToPdfConverter = New HtmlToPdfConverter() converter.PageSize = PaperKind.A4 converter.Orientation = Bytescout.PDF.Converters.PaperOrientation.Portrait ' Convert input HTML to stream Dim byteArrayBody As Byte() = Encoding.UTF8.GetBytes(msgBody) Dim inputStream As MemoryStream = New MemoryStream(byteArrayBody) ' Create output stream to store generated PDF file Using outputStream = New MemoryStream() ' Convert HTML to PDF converter.ConvertHtmlToPdf(inputStream, outputStream) ' Create new document from generated output stream Dim docContent As Document = New Document(outputStream) ' Append all pages to main PDF For Each item As Page In docContent.Pages outputDocument.Pages.Add(item) Next ' Get attachments from message (if any, and append to document) If msg.Attachments.Count > 0 Then For Each itmAttachment As MsgReader.Outlook.Storage.Attachment In msg.Attachments ' Get Memory Stream Dim attachmentMemoryStream As MemoryStream = New MemoryStream(itmAttachment.Data) ' Append Attachment Dim docAttachment As Document = New Document(attachmentMemoryStream) ' Append all pages to main PDF For Each item As Page In docAttachment.Pages outputDocument.Pages.Add(item) Next Next End If ' Save output file outputDocument.Save("result.pdf") ' Open output file Process.Start("result.pdf") End Using End Using End Using End Using Catch ex As Exception Console.WriteLine(ex.Message) Console.WriteLine("Press enter key to exit...") Console.ReadLine() End Try End Sub End Module