word 转 pdf，c#代码

通过使用 C# 控制 office 软件 com 组件转 pdf

1 word 转 pdf

方案二：可以使用 netoffice 进行转换

参考文档：https://netoffice.io/documentation/

api 使用方法和  Microsoft.Office.Interop 的使用方法一致

1）添加需要的引用

引用 右击 -》 添加引用 -》 扩展 -》 Microsoft.Office.Interop.Word、Microsoft.Office.Interop.Excel、Microsoft.Office.Interop.PowerPoint 14.0.0.0 版本 

2）设置互操作类型为 false

引用的 word excel powerpoint 属性中 -》 设置嵌入互操作类型为 false

3)  关键代码如下

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using System.IO;
using Word = Microsoft.Office.Interop.Word;
using Excel = Microsoft.Office.Interop.Excel;
using PowerPoint = Microsoft.Office.Interop.PowerPoint;
using System.ServiceProcess;


namespace firstAppConsole
{
    class OfficeToPdfHandler
    {
        public string officeFilename;

        public OfficeToPdfHandler()
        {
        }
        public OfficeToPdfHandler(string officeFilename)
        {
            this.officeFilename = officeFilename;
        }

        public void convertWord2Pdf()
        {
            printService();
            Object missing = Type.Missing;
            Word.ApplicationClass wordApplication = new Word.ApplicationClass();
            Word._Document wordDocument = null;

            bool confirmConversions = false;
            bool readOnly = false;
            bool addToRecentFiles = false;
            bool visible = false;
            bool openAndRepair = true;
            bool noEncodingDialog = true;

            Word.WdExportFormat exportFormat = Word.WdExportFormat.wdExportFormatPDF;
            Word.WdExportRange paramExportRange = Word.WdExportRange.wdExportAllDocument;
            Word.WdExportOptimizeFor exportOptimizeFor =  Word.WdExportOptimizeFor.wdExportOptimizeForPrint;
            int paramStartPage = 0;
            int paramEndPage = 0;
            Word.WdExportItem exportItem = Word.WdExportItem.wdExportDocumentContent;

            bool paramIncludeDocProps = true;
            bool paramKeepIRM = true;
            Word.WdExportCreateBookmarks paramCreateBookmarks = Word.WdExportCreateBookmarks.wdExportCreateWordBookmarks;
            bool paramDocStructureTags = true;
            bool paramBitmapMissingFonts = true;
            bool paramUseISO19005_1 = false;

            string pdfFilename = getPdfFilename();
            cleanPdfFile(pdfFilename);

            if (wordApplication != null)
            {
                Console.WriteLine("start application success");
                wordApplication.Visible = false;
                wordApplication.NormalTemplate.Saved = true;
            try
            {
                wordDocument = wordApplication.Documents.Open(
                    officeFilename,
                    confirmConversions,
                    readOnly,
                    addToRecentFiles,
                    ref missing,
                    ref missing,
                    ref missing,
                    ref missing,
                    ref missing,
                    ref missing,
                    ref missing,
                    visible,
                    openAndRepair,
                    ref missing,
                    noEncodingDialog,
                    ref missing);
                if (wordDocument != null)
                {
                    wordDocument.ExportAsFixedFormat(
                        pdfFilename, exportFormat,
                        false, exportOptimizeFor,
                        paramExportRange,
                            paramStartPage, paramEndPage,
                            exportItem, paramIncludeDocProps,
                            paramKeepIRM, paramCreateBookmarks, paramDocStructureTags,
                            paramBitmapMissingFonts, paramUseISO19005_1,
                            ref missing);
                }

            }
            catch (Exception ex)  {
                Console.WriteLine(ex);
            }
            finally {
                if (wordDocument != null) {
                    wordDocument.Close(Word.WdSaveOptions.wdDoNotSaveChanges, Word.WdOriginalFormat.wdOriginalDocumentFormat, ref missing);
                    wordDocument = null;
                }
                if (wordApplication != null)
                {
                    wordApplication.Quit();
                    wordApplication = null;
                }
            }
            }

        }

        public static void printService() {
            var serviceControllers = ServiceController.GetServices();
            foreach (var service in serviceControllers)
            {
                Console.WriteLine("ServiceName:{0}		ServiceStatus:{1}", service.ServiceName, service.Status);
            }
        }

        public OfficeFileType getFileType()
        {
            if (String.IsNullOrEmpty(officeFilename))
            {
                throw new Exception("officeFilename is null or empty");
            }
            
            FileInfo fileInfo = new FileInfo(officeFilename);
            if (!fileInfo.Exists) 
            {
                throw new Exception("file not exist:" + officeFilename);
            }
            string extension = fileInfo.Extension;
            switch (extension)
            {
                case ".doc":
                case ".docx":
                    return OfficeFileType.WORD;
                    break;
                case ".xls":
                case ".xlsx":
                    return OfficeFileType.EXCEL;
                    break;
                case ".ppt":
                case ".pptx":
                    return OfficeFileType.PPT;
                    break;

            }
            throw new Exception("can't find officeFilename type:" + officeFilename);
        }

        public static void cleanPdfFile(string officeFilename)
        {
            string pdfFilename= Path.ChangeExtension(officeFilename, ".pdf");
            FileInfo fileInfo = new FileInfo(pdfFilename);
            if (fileInfo.Exists) 
            {
                fileInfo.Delete();
            }
        }

        public string getPdfFilename() 
        {
            return Path.ChangeExtension(officeFilename, ".pdf");
        }



    }

    enum OfficeFileType
    {
        WORD, EXCEL, PPT
    }

    class Program
    {
        static void Main(string[] args)
        {
            OfficeToPdfHandler officeHandler = new OfficeToPdfHandler(@"D:logs创作笔记2018.docx");
            officeHandler.convertWord2Pdf();
            Console.WriteLine("done");

        }
    }
}

2 excel 转 pdf，可以参考上面 word 转 pdf 进行设置

关键代码如下

public void convertExcel2Pdf() 
        {
            if (officeFilename == null) {
                return;
            }
            string tfn = officeFilename.ToLower();
            if (!((tfn.EndsWith(".xls") || tfn.EndsWith(".xlsx"))))
            {
                return;
            }
            FileInfo fileInfo = new FileInfo(officeFilename);
            if (!fileInfo.Exists) {
                return;
            }
            Object missing = Type.Missing;
            Excel._Application excelApplication = new Excel.ApplicationClass();
            Excel.Workbook workBook = null;

            string pdfFilename = getPdfFilename();
            cleanPdfFile(pdfFilename);

            bool readOnly = false;
            bool ignoreReadOnlyRecommended = true;

            bool editable = false;
            bool notify = false;
            bool addToMru = false;
            bool local = true;

            Excel.XlFixedFormatType xlFixedFormatType = Excel.XlFixedFormatType.xlTypePDF;
            Excel.XlFixedFormatQuality xlFixedFormatQuality = Excel.XlFixedFormatQuality.xlQualityStandard;
            bool includeDocProperties = true;
            bool ignorePrintAreas = true;
            bool openAfterPublish = false;

            if (excelApplication != null)
            {
                Console.WriteLine("excel application start success");
                excelApplication.Visible = false;
                
               
                    try
                    {
                        workBook = excelApplication.Workbooks.Open(
                            officeFilename,
                            missing,
                            readOnly,
                            missing,
                            missing,
                            missing,
                            ignoreReadOnlyRecommended,
                            Excel.XlPlatform.xlWindows,
                            missing,
                            editable,
                            notify,
                            missing,
                            addToMru,
                            local,
                            missing);
                        workBook.ExportAsFixedFormat(
                            xlFixedFormatType,
                            pdfFilename,
                            xlFixedFormatQuality,
                            includeDocProperties,
                            ignorePrintAreas,
                            missing,
                            missing,
                            openAfterPublish,
                            missing);
                    }
                    catch (Exception e)
                    {
                        Console.WriteLine(e.StackTrace);
                    }
                    finally
                    {
                        if (workBook != null)
                        {
                            workBook.Close(false, missing, missing);
                            workBook = null;
                        }
                        if (excelApplication != null)
                        {
                            excelApplication.Quit();
                            excelApplication = null;
                        }
                    }

            }
        
        }