CODEWITHSUNDEEP
c#
Saba Manzoor
Saba Manzoor

Reputation: 117

Convert word file(.docx & doc) to .pdf using c#

How i can convert word file (.docx & doc ) to .pdf in c# without using SaveAs() or Save() method ? or without uploading on server?

Upvotes: 7

Views: 27148

Answers (6)

reZach
reZach

Reputation: 9489

I haven't yet seen an example using LibreOffice. All that's needed is the portable executable and you can do this easily in C# in NET Core. I've got a link to a working NET Core app in this writeup I wrote about solving this problem with LibreOffice.

using System.Diagnostics;

namespace ConvertDOCXToPDF
{
    internal class Program
    {
        static void Main(string[] args)
        {
            // Create LibreOfficeWriter CLI process
            var commandArgs = new List<string>
            {
                "--convert-to", //a flag that will be followed by the file type we want to convert to
                "pdf:writer_pdf_Export", // the [output file type]:[OutputFilterName] we are requesting the output to be; more details are here (https://help.libreoffice.org/latest/en-US/text/shared/guide/convertfilters.html)
                "C:\\Users\\zachary\\Downloads\\Letter.docx", // input file
                "--norestore", // disables restart and file recovery after a system crash
                "--headless", // allows using the application without user interface
                "--outdir", // a flag that will be followed by the output directory where we want our new pdf file to be created
                "C:\\Users\\zachary\\Downloads" // output directory
            };

            // The path to LibreOfficeWriterPortable.exe
            ProcessStartInfo processStartInfo = new ProcessStartInfo("C:\\Users\\zachary\\Downloads\\LibreOfficePortablePrevious\\LibreOfficeWriterPortable.exe"); 
            foreach (string arg in commandArgs)
                processStartInfo.ArgumentList.Add(arg);

            Process process = new Process
            {
                StartInfo = processStartInfo
            };

            // Only 1 instance of LibreOfficeWriter can be running at a given time
            Process[] existingProcesses = Process.GetProcessesByName("soffice");
            while (existingProcesses.Length > 0)
            {
                Thread.Sleep(1000);
                existingProcesses = Process.GetProcessesByName("soffice");
            }

            // Start the process
            process.Start();
            process.WaitForExit();

            // Check for failed exit code.
            if (process.ExitCode != 0)
                throw new Exception("Failed to convert file");
            else
            {
                int totalChecks = 10;
                int currentCheck = 1;

                string originalFileName = Path.GetFileNameWithoutExtension(commandArgs[2]);
                string newFilePath = Path.Combine(commandArgs[6], $"{originalFileName}.pdf");

                while (currentCheck <= totalChecks)
                {
                    if (File.Exists(newFilePath))
                    {
                        // File conversion was successful

                        break;
                    }

                    Thread.Sleep(500); // LibreOffice doesn't immediately create PDF output once the command is run
                }
            }
        }
    }
}

Upvotes: 0

Gail Thorne
Gail Thorne

Reputation: 11

Try this. It‘s the most useful and simple method in my opinion. You can easily accomplish this task by following just three simple steps with the help of Spire.Doc for .NET.

To view the full technical blog post follow this link.

using Spire.Doc;

namespace ToPDF
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create a Document object
            Document document = new Document();

            //Load a sample Word document
            document.LoadFromFile(@"C:\Users\Administrator\Desktop\Test.docx");

            //Save the document to PDF
            document.SaveToFile("ToPDF.pdf", FileFormat.PDF);
        }
    }
}

Upvotes: 1

Fox
Fox

Reputation: 101

Based on wangkaibule's answer, PDF conversion with heading bookmarks. It also works under .NET 7 (similar to the linked post).

public static void Convert(string inputFileName, string outputFileName)
{
  // Microsoft.Office.Interop.Word.WdSaveFormat enum
  const int wdFormatPDF = 17;
  // Microsoft.Office.Interop.Word.WdExportCreateBookmarks enum
  const int wdExportCreateHeadingBookmarks = 1;
  // Microsoft.Office.Interop.Word.WdSaveOptions enum
  const int wdDoNotSaveChanges = 0;

  var word = Type.GetTypeFromProgID("word.application");
  if (word == null)
  {
    throw new ArgumentException("Microsoft Word is not installed on the system.");
  }

  dynamic app = Activator.CreateInstance(word);
  try
  {
    dynamic doc = app.Documents.Open(inputFileName);
    doc.ExportAsFixedFormat(outputFileName, ExportFormat: wdFormatPDF, CreateBookmarks: wdExportCreateHeadingBookmarks);
    doc.Close(wdDoNotSaveChanges);
  }
  finally
  {
    app.Quit();
  }
}

Upvotes: 0

cristian.d
cristian.d

Reputation: 145

Aspose.Words is really good solution for this purpose if you can buy the license. The free version adds warning messages to the output PDF.

If you're looking for something free, I have used FreeSpire.Doc, the free version has the following limits:

Free version is limited to 500 paragraphs and 25 tables. This limitation is enforced during reading or writing files. When converting word documents to PDF and XPS files, you can only get the first 3 page of PDF file. Upgrade to Commercial Edition of Spire.Doc

MS Office, Office.Interop or Office automations are not required.

Install via NuGet:

Install-Package FreeSpire.Doc -Version 7.11.0

Code example:

using System;
using Spire.Doc;
using Spire.Doc.Documents;

namespace DoctoPDF
{
    class toPDF
    {
        static void Main(string[] args)
        {
            //Load Document
            Document document = new Document();
            document.LoadFromFile(@"E:\work\documents\TestSample.docx");

            //Convert Word to PDF
            document.SaveToFile("toPDF.PDF", FileFormat.PDF);

            //Launch Document
            System.Diagnostics.Process.Start("toPDF.PDF");
        }
    }
}

NuGet Package page here

Upvotes: 6

wangkaibule
wangkaibule

Reputation: 848

Try this, no extra compiler configuration needed if MS Office Word is installed on your computer:

using System;
using System.IO;
using System.Reflection;

namespace KUtil
{
    public class Word2PDF
    {
        static void Main(string[] args)
        {
            var word = Type.GetTypeFromProgID("word.application");
            dynamic app = Activator.CreateInstance(word);
            if (args.Length < 1)
            {
                return;
            }
            var path = args[0];
            var outPath = Path.ChangeExtension(path, "pdf");
            dynamic doc = app.Documents.Open(path);
            doc.ExportAsFixedFormat(outPath,
                    ExportFormat:17/*pdf*/);
            doc.Close(0/*DoNotSaveChanges*/);
            app.Quit();
        }
    }
}

Upvotes: 2

Human
Human

Reputation: 77

Try this, it works for me:

using Microsoft.Office.Interop.Word;

var appWord = new Application();
if (appWord.Documents != null)
{
    //yourDoc is your word document
    var wordDocument = appWord.Documents.Open(yourDoc);
    string pdfDocName = "pdfDocument.pdf";
    if (wordDocument != null)
    {                                         
       wordDocument.ExportAsFixedFormat(pdfDocName,   
       WdExportFormat.wdExportFormatPDF);
       wordDocument.Close();
    }
       appWord.Quit();
}

Upvotes: 7

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