使用 c# 将 word 文件（.docx 和 doc）转换为 .pdf

Question

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

Answer 1

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();
}

Answer 2

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

Answer 3

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();
        }
    }
}

Answer 4

You can use this code to convert ms-word document to pdf using aspose

    
public class Program
    {
        public static void Main(string[] args)
        {
            var content = File.ReadAllBytes("response.doc");
            var document = new Document(new MemoryStream(content));

            ClearFormat(document);

            var options = SaveOptions.CreateSaveOptions(SaveFormat.Pdf);

            options.PrettyFormat = true;
            options.UseAntiAliasing = true;
            options.UseHighQualityRendering = true;

            document.Save("response.pdf", options);
        }

        private static void ClearFormat(Document doc)
        {
            for (var i = 0; i < doc.Sections.Count; i++)
            {
                var nodes = doc.Sections[i].GetChildNodes(NodeType.Run, true);
                if (nodes == null || nodes.Count <= 0) continue;
                foreach (var item in (from Run item in nodes
                                      where item.Font.Name.ToLower().Contains("nastaliq")
                                      select item).ToList())
                {
                    item.Font.Name = "Times New Roman";
                    item.Font.Size = item.Font.Size > 12 ? 12 : item.Font.Size;
                }
            }
        }
    }