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PDF Converter VB.NET Library
Create PDF from RTF in VB.NET


Tutorial for VB.NET Users to Convert RTF File to PDF Document in Visual Basic Program











VB.NET Demo Code for Converting RTF to PDF




How to VB.NET: Convert single RTF file to PDF



VB.NET demo code for creating PDF document from RTF format.



'rtf convert to pdf(file to file)
Dim doc As RTFDocument = New RTFDocument("C:\dmeo.rtf")
doc.ConvertToDocument(DocumentType.PDF, "C:\output.pdf")



'rtf convert to pdf(Stream to Stream)
Dim inputFilePath As String = "C:\demo.rtf"
Dim arr() As Byte = File.ReadAllBytes(inputFilePath)
Dim inputStream As MemoryStream = New MemoryStream(arr)
Dim doc As RTFDocument = New RTFDocument(inputStream)
Dim outputStream As MemoryStream = New MemoryStream()
doc.ConvertToDocument(DocumentType.PDF, outputStream)





How to VB.NET: Convert two or multiple RTF files to PDF(batch convert)



Following demo codes will show how to convert rtf files to pdf documents.



Dim inputDirectory As String = "C:\input\"
Dim outputDirectory As String = "C:\Output\"
Dim files() As String = Directory.GetFiles(inputDirectory, "*.rtf")

'convert rtf document to pdf one by one.
For Each filePath As String In  files
       Dim doc As RTFDocument = New RTFDocument(filePath)
       Dim startIdx As Integer = filePath.LastIndexOf("\")
       Dim endIdx As Integer = filePath.LastIndexOf(".")
       Dim docName As String = filePath.SubString(startIdx + 1, endIdx - startIdx - 1)
       ' Convert it to PDF document.
       doc.ConvertToDocument(DocumentType.PDF, outputDirectory + docName + ".pdf")
Next





How to VB.NET: Combine multiple RTF files, and convert to PDF



Following is VB.NET demo code for rtf files to PDF conversion.



Dim files() As String = { "C:\demo1.rtf, C:\demo2.rtf, C:\demo3.rtf" }
Dim outputFilePath As String = "C:\output.pdf"
Dim streams As List(Of MemoryStream) = New List(Of MemoryStream)()
For Each filePath As String In  files
       Dim doc As RTFDocument = New RTFDocument(filePath)
       Dim outputStream As MemoryStream = New MemoryStream()
       ' Convert it to PDF document.
       doc.ConvertToDocument(DocumentType.PDF, outputStream)
       streams.Add(outputStream)
Next
PDFDocument.CombineDocument(streams, outputFilePath)





How to VB.NET: Insert RTF file into pdf document, and create a new PDF file



Following is VB.NET demo code to Insert rtf file to PDF at specific location.



Dim filePath As String = "C:\demo.rtf"
Dim doc As RTFDocument = New RTFDocument(filePath)
Dim stream As MemoryStream = New MemoryStream()
doc.ConvertToDocument(DocumentType.PDF, stream)
Dim pdf As PDFDocument = New PDFDocument(stream)
Dim pageCount As Integer = pdf.GetPageCount()
Dim pages List(Of BasePage) = New List(Of BasePage)() 
For i As Integer = 0 To pageCount - 1
       pages.Add(pdf.GetPage(i))
Next
Dim outputPdf As String = "C:\output.pdf"
Dim desDoc As PDFDocument = New PDFDocument(outputPdf)
Dim insertLocation As Integer = 2
desDoc.InsertPages(pages.ToArray(), insertLocation)
desDoc.Save("C:\desDocument.pdf")