How to convert DOCX to PDF within C# and VB.Net

Convert DOCX to PDF format within C# and VB.Net

Document .Net can help your application to convert a document from a one format to another.
You'll need only to Load a document and Save to a desired format:


            DocumentCore dc = DocumentCore.Load("...");
            dc.Save("....");

Document .Net supports these formats:

Conversion examples:

  1. Convert DOCX to PDF:

                DocumentCore dc = DocumentCore.Load(@"d:\Before.docx");
                dc.Save(@"d:\After.pdf");
    
  2. Convert DOCX to PDF (in memory):
                byte[] rtfBytes = ....; // Say, get RTF bytes from DB.
                byte[] docxBytes = null;
                using (MemoryStream msRtf = new MemoryStream(rtfBytes))
                {
                    DocumentCore dc = DocumentCore.Load(msRtf, new RtfLoadOptions());
                    using (MemoryStream msDocx = new MemoryStream())
                    {
                        dc.Save(msDocx, new DocxSaveOptions());
                        docxBytes = msDocx.ToArray();
                    }
                }
    
  3. Convert DOCX to PDF (with options):

                DocumentCore dc = DocumentCore.Load(@"d:\Before.pdf", 
                    new PdfLoadOptions()
                    {DetectTables=true,
                    ConversionMode = PdfConversionMode.Continuous,
                    PageIndex=0,
                    PageCount=1});
    
                dc.Save(@"d:\After.html", new HtmlFixedSaveOptions()
                {Version = HtmlVersion.Html5,
                CssExportMode = CssExportMode.Inline,
                EmbedImages = true});
    
 

Complete code

using System.IO;
using SautinSoft.Document;

namespace Example
{
    class Program
    {
        static void Main(string[] args)
        {
            ConvertFromFile();
            ConvertFromStream();
        }

        /// <summary>
        /// Convert DOCX to PDF (file to file).
        /// </summary>
		/// <remarks>
        /// Details: https://sautinsoft.com/products/document/examples/convert-docx-to-pdf-in-csharp-vb.php
        /// </remarks>
        static void ConvertFromFile()
        {
            string inpFile = @"..\..\example.docx";
            string outFile = @"Result.pdf";

            DocumentCore dc = DocumentCore.Load(inpFile);
            dc.Save(outFile);

            // Open the result for demonstation purposes.
            System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(outFile) { UseShellExecute = true });
        }

        /// <summary>
        /// Convert DOCX to PDF (using Stream).
        /// </summary>
		/// <remarks>
        /// Details: https://sautinsoft.com/products/document/examples/convert-docx-to-pdf-in-csharp-vb.php
        /// </remarks>
        static void ConvertFromStream()
        {

            // We need files only for demonstration purposes.
            // The conversion process will be done completely in memory.
            string inpFile = @"..\..\example.docx";
            string outFile = @"ResultStream.pdf";
            byte[] inpData = File.ReadAllBytes(inpFile);
            byte[] outData = null;

            using (MemoryStream msInp = new MemoryStream(inpData))
            {

                // Load a document.
                DocumentCore dc = DocumentCore.Load(msInp, new DocxLoadOptions());

                // Save the document to PDF format.
                using (MemoryStream outMs = new MemoryStream())
                {
                    dc.Save(outMs, new PdfSaveOptions() );
                    outData = outMs.ToArray();                    
                }
                // Show the result for demonstation purposes.
                if (outData != null)
                {
                    File.WriteAllBytes(outFile, outData);
                    System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(outFile) { UseShellExecute = true });
                }
            }
        }
    }
}

Download.

        
            Imports System
Imports System.IO
Imports SautinSoft.Document

Module Sample
    Sub Main()
        ConvertFromFile()
        ConvertFromStream()
    End Sub

    ''' <summary>
    ''' Convert DOCX to PDF (file to file).
    ''' </summary>
    ''' <remarks>
    ''' Details: https://sautinsoft.com/products/document/examples/convert-docx-to-pdf-in-csharp-vb.php
    ''' </remarks>
    Sub ConvertFromFile()
        Dim inpFile As String = "..\example.docx"
        Dim outFile As String = "Result.pdf"

        Dim dc As DocumentCore = DocumentCore.Load(inpFile)
        dc.Save(outFile)

        ' Open the result for demonstation purposes.
        System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(outFile) With {.UseShellExecute = True})
    End Sub

    ''' <summary>
    ''' Convert DOCX to PDF (using Stream).
    ''' </summary>
    ''' <remarks>
    ''' Details: https://sautinsoft.com/products/document/examples/convert-docx-to-pdf-in-csharp-vb.php
    ''' </remarks>
    Sub ConvertFromStream()

        ' We need files only for demonstration purposes.
        ' The conversion process will be done completely in memory.
        Dim inpFile As String = "..\example.docx"
        Dim outFile As String = "ResultStream.pdf"
        Dim inpData() As Byte = File.ReadAllBytes(inpFile)
        Dim outData() As Byte = Nothing

        Using msInp As New MemoryStream(inpData)

            ' Load a document.
            Dim dc As DocumentCore = DocumentCore.Load(msInp, New DocxLoadOptions())

            ' Save the document to PDF format.
            Using outMs As New MemoryStream()
                dc.Save(outMs, New PdfSaveOptions())
                outData = outMs.ToArray()
            End Using
            ' Show the result for demonstation purposes.
            If outData IsNot Nothing Then
                File.WriteAllBytes(outFile, outData)
                System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(outFile) With {.UseShellExecute = True})
            End If
        End Using
    End Sub
End Module

Download.


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We are developing .Net components since 2002. We know PDF, DOCX, RTF, HTML, XLSX and Images formats. If you need any assistance with creating, modifying or converting documents in various formats, we can help you. We will write any code example for you absolutely free.

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