LEADTOOLS教程分享：C#, VB和Java中如何将HTML转化成PDF

LEAD有一个世界级的文档转换器可以轻松地将HTML转换为PDF。PDF的可移植性使你可以通过多种设备在线或离线访问 页的内容。

你可能已经听说过LEAD有一个世界级的文档转换器。我们的文档转换器可以轻松地将HTML转换为PDF。PDF的可移植性使你可以通过多种设备在线或离线访问 页的内容。

接下来我们将用代码给您展示如何在C#、VB和Java中将HTML转化成PDF文档。

这里用到的SDK是LEADTOOLS PDF Pro Developer Toolkit，点击这里即可下载。

// 初始化转换器namespace Convert_Files_with_Document_Converter{  class Program  {    static void Main(string[] args)    {      string directory = @"C:InputFileDirectory";      string input_file = Directory.GetFiles(directory, "example.html");      string output_file = Path.Combine(directory, $"example.pdf");      SetLicense(); //Sets the LEADTOOLS License      using (IOcrEngine ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.LEAD))      using (DocumentConverter docConverter = new DocumentConverter())      {        ocrEngine.Startup(null, null, null, @"C:LEADTOOLS21BinCommonOcrLEADRuntime");        docConverter.SetOcrEngineInstance(ocrEngine, false);        // Change the DocumentFormat enumeration to whichever format is needed        ConvertFile(input_file, output_file, docConverter, DocumentFormat.Pdf);      }    }  }}

// 执行转化功能static void ConvertFile(string inFile, string outFile, DocumentConverter docConverter, DocumentFormat docFormat){  Console.WriteLine($"Converting {inFile}...");  DocumentConverterJobData jobData = DocumentConverterJobs.CreateJobData(inFile, outFile, docFormat);  jobData.JobName = "Convert to Webpage Job";  DocumentConverterJob job = docConverter.Jobs.CreateJob(jobData);  docConverter.Jobs.RunJob(job);  if (job.Errors.Count > 0)    foreach (var error in job.Errors)      Console.WriteLine($"Error during conversion: {error.Error.Message}n");  else    Console.WriteLine($"Successfully Convereted {inFile} to {outFile}n");}

// VB中实现HTML转PDFUsing documentConverter As DocumentConverter = New DocumentConverter()  Dim inFile = Path.Combine(ImagesPath.Path, "example.html")  Dim outFile = Path.Combine(ImagesPath.Path, "example.pdf")  Dim format = DocumentFormat.Pdf  Dim jobData = DocumentConverterJobs.CreateJobData(inFile, outFile, format)  jobData.JobName = "TXT conversion to PDF"  Dim documentWriter = New DocumentWriter()  documentConverter.SetDocumentWriterInstance(documentWriter)  Dim job = documentConverter.Jobs.CreateJob(jobData)  documentConverter.Jobs.RunJob(job)  If job.Status = DocumentConverterJobStatus.Success Then    Console.WriteLine("Success")  Else    Console.WriteLine("{0} Errors", job.Status)    For Each [error] In job.Errors      Console.WriteLine("  {0} at {1}: {2}", [error].Operation, [error].InputDocumentPageNumber, [error].[Error].Message)    Next  End IfEnd Using

// Java中实现HTML转PDFString inFile = Path.Combine(ImagesPath.Path, @"example.html");String outFile = Path.Combine(ImagesPath.Path, @"example.pdf");DocumentFormat format = DocumentFormat.Pdf;DocumentConverter documentConverter = new DocumentConverter();DocumentWriter docWriter = new DocumentWriter();docConverter.setDocumentWriterInstance(docWriter);DocumentConverterJobData jobData =  DocumentConverterJobs.CreateJobData(inFile, outFile, format);jobData.setJobName("HTML Conversion");DocumentConverterJob job = docConverter.getJobs().createJob(jobData);docConverter.getJobs().runJob(job);if (job.getErrors().size() > 0)  for (DocumentConverterJobError error : job.getErrors())    System.out.println("%2fnError during conversion: " + error.getError().getMessage());else  System.out.println("Successfully converted file to " + outFile);

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