asp.net core调用wps实现word转pdf的方法

1，首先安装wps，从官网下载安装包

2，创建.net core控制项目

添加com引用，搜索wps

准备一个word文档，名字叫001.docx，随便编写一些文字内容

3，word转pdf

编写代码

namespace WPSStu01
{internal class Program{static void Main(string[] args){Console.WriteLine("转化开始");var inputFile = "001.docx";var outputFile = "001.pdf";WordExportAsPdf(inputFile, outputFile);Console.WriteLine("转化成功");Console.ReadKey();}/// <summary>/// 转换为pdf文件，适合（.doc、.docx、.mht、.htm文件类型）/// </summary>/// <param name="fileName"></param>/// <param name="outputFileName"></param>/// <returns></returns>public static string WordExportAsPdf(string fileName, string outputFileName){string isSucceed = "OK";Word.WdExportFormat fileFormat = Word.WdExportFormat.wdExportFormatPDF;Word.Application wordApp = null;if (wordApp == null) wordApp = new Word.Application();Word._Document wordDoc = null;try{wordDoc = wordApp.Documents.Open(fileName, false, true);wordDoc.ExportAsFixedFormat(outputFileName, fileFormat);}catch (Exception ex){isSucceed = ex.Message;}finally{if (wordDoc != null){wordDoc.Close(false);wordDoc = null;}if (wordApp != null){wordApp.Quit(false);wordApp = null;}}return isSucceed;}}
}

如果启动项目报错

要选择一下32位程序

如果发现还是不行，最后换成.net framework 4.8的控制台项目
添加dll的引用,dll需要去安装的wps里面查找

Console.WriteLine("转化开始");
var exePath = System.AppDomain.CurrentDomain.BaseDirectory;
var inputFile = Path.Combine(exePath, "001.docx");
var outputFile = Path.Combine(exePath, "001.pdf");
WordExportAsPdf(inputFile, outputFile);
Console.WriteLine("转化成功");
Console.ReadKey();

asp.net core也可以问题根本原因是路径的问题，不能些相对路径，必须绝对路径

4，excel转pdf

/// <summary>
/// Excel转换为pdf文件
/// </summary>
/// <param name="fileName"></param>
/// <param name="outputFileName"></param>
/// <returns></returns>
public static string ExcelExportAsPdf(string fileName, string outputFileName)
{string isSucceed = "OK";Excel.Application excelApp = null;if (excelApp == null)excelApp = new Excel.Application();Excel.Workbook workBook = null;try{workBook = excelApp.Workbooks.Open(fileName, false, true);workBook.ExportAsFixedFormat(Excel.XlFixedFormatType.xlTypePDF,outputFileName);}catch (Exception ex){isSucceed = ex.Message;}finally{if (workBook != null){workBook.Close(false);workBook = null;}if (excelApp != null){excelApp.Quit();excelApp = null;}}return isSucceed;
}

调用

Console.WriteLine("转化开始");
var exePath = System.AppDomain.CurrentDomain.BaseDirectory;
var inputFile = Path.Combine(exePath, "002.xls");
var outputFile = Path.Combine(exePath, "002.pdf");
ExcelExportAsPdf(inputFile, outputFile);
Console.WriteLine("转化成功");
Console.ReadKey();

ppt转pdf

/// <summary>
/// PPT转换为pdf文件
/// </summary>
/// <param name="fileName"></param>
/// <param name="outputFileName"></param>
/// <returns></returns>
public static string PptExportAsPdf(string fileName, string outputFileName)
{string isSucceed = "OK";PowerPoint.Application pptApp = null;if (pptApp == null)pptApp = new PowerPoint.Application();PowerPoint.Presentation presentation = null;try{presentation = pptApp.Presentations.Open(fileName);presentation.ExportAsFixedFormat(outputFileName,PowerPoint.PpFixedFormatType.ppFixedFormatTypePDF);}catch (Exception ex){isSucceed = ex.Message;}finally{if (pptApp != null){presentation.Close();pptApp = null;}if (pptApp != null){pptApp.Quit();pptApp = null;}}return isSucceed;
}

调用

Console.WriteLine("转化开始");
var exePath = System.AppDomain.CurrentDomain.BaseDirectory;
var inputFile = Path.Combine(exePath, "003.pptx");
var outputFile = Path.Combine(exePath, "003.pdf");
PptExportAsPdf(inputFile, outputFile);
Console.WriteLine("转化成功");
Console.ReadKey();