private void button1_Click(object sender, EventArgs e)
{
Pdf2ImageConverter wi = new Pdf2ImageConverter();
wi.ConvertToImage(@"D:\图片\2010xrss (1).pdf", @"D:\图片");
}
/// <summary>
/// 将pdf文档转换为图片的方法
/// </summary>
/// <param name="originFilePath">ppt文件路径</param>
/// <param name="imageOutputDirPath">图片输出路径，如果为空，默认值为pdf所在路径</param>
/// <param name="startPageNum">从PDF文档的第几页开始转换，如果为0，默认值为1</param>
/// <param name="endPageNum">从PDF文档的第几页开始停止转换，如果为0，默认值为pdf总页数</param>
/// <param name="resolution">设置图片的像素，数字越大越清晰，如果为0，默认值为128，建议最大值不要超过1024</param>
private void ConvertToImage(string originFilePath, string imageOutputDirPath, int startPageNum, int endPageNum, int resolution)
{
try
{
Aspose.Slides.Presentation doc = new Aspose.Slides.Presentation(originFilePath);
if (doc == null)
{
throw new Exception("ppt文件无效或者ppt文件被加密！");
}
if (imageOutputDirPath.Trim().Length == 0)
{
imageOutputDirPath = Path.GetDirectoryName(originFilePath);
}
if (!Directory.Exists(imageOutputDirPath))
{
Directory.CreateDirectory(imageOutputDirPath);
}
if (startPageNum <= 0)
{
startPageNum = 1;
}
if (endPageNum > doc.Slides.Count || endPageNum <= 0)
{
endPageNum = doc.Slides.Count;
}
if (startPageNum > endPageNum)
{
int tempPageNum = startPageNum; startPageNum = endPageNum; endPageNum = startPageNum;
}
if (resolution <= 0)
{
resolution = 128;
}
//先将ppt转换为pdf临时文件
string tmpPdfPath = originFilePath + ".pdf";
doc.Save(tmpPdfPath, Aspose.Slides.Export.SaveFormat.Pdf);
//再将pdf转换为图片
Pdf2ImageConverter converter = new Pdf2ImageConverter();
converter.ConvertFailed += new CbGeneric <string>(converter_ConvertFailed);
converter.ConvertSucceed += new CbGeneric(converter_ConvertSucceed);
converter.ProgressChanged += new CbGeneric <int, int>(converter_ProgressChanged);
converter.ConvertToImage(tmpPdfPath, imageOutputDirPath);
//删除pdf临时文件
File.Delete(tmpPdfPath);
if (this.ConvertSucceed != null)
{
this.ConvertSucceed();
}
}
catch (Exception ex)
{
if (this.ConvertFailed != null)
{
this.ConvertFailed(ex.Message);
}
}
this.pdf2ImageConverter = null;
}
/// <summary>
/// 将pdf文档转换为图片的方法
/// </summary>
/// <param name="originFilePath">ppt文件路径</param>
/// <param name="imageOutputDirPath">图片输出路径，如果为空，默认值为pdf所在路径</param>
/// <param name="startPageNum">从PDF文档的第几页开始转换，如果为0，默认值为1</param>
/// <param name="endPageNum">从PDF文档的第几页开始停止转换，如果为0，默认值为pdf总页数</param>
/// <param name="resolution">设置图片的像素，数字越大越清晰，如果为0，默认值为128，建议最大值不要超过1024</param>
private void ConvertToImage(string originFilePath, string imageOutputDirPath, int startPageNum, int endPageNum, int resolution)
{
try
{
Aspose.Slides.Presentation doc = new Aspose.Slides.Presentation(originFilePath);
if (doc == null)
{
throw new Exception("ppt文件无效或者ppt文件被加密！");
}
if (imageOutputDirPath.Trim().Length == 0)
{
imageOutputDirPath = Path.GetDirectoryName(originFilePath);
}
if (!Directory.Exists(imageOutputDirPath))
{
Directory.CreateDirectory(imageOutputDirPath);
}
if (startPageNum <= 0)
{
startPageNum = 1;
}
if (endPageNum > doc.Slides.Count || endPageNum <= 0)
{
endPageNum = doc.Slides.Count;
}
if (startPageNum > endPageNum)
{
int tempPageNum = startPageNum; startPageNum = endPageNum; endPageNum = startPageNum;
}
if (resolution <= 0)
{
resolution = 128;
}
//先将ppt转换为pdf临时文件
string tmpPdfPath = originFilePath + ".pdf";
doc.Save(tmpPdfPath ,Aspose.Slides.Export.SaveFormat.Pdf);
//再将pdf转换为图片
Pdf2ImageConverter converter = new Pdf2ImageConverter();
converter.ConvertFailed += new CbGeneric<string>(converter_ConvertFailed);
converter.ConvertSucceed += new CbGeneric(converter_ConvertSucceed);
converter.ProgressChanged += new CbGeneric<int, int>(converter_ProgressChanged);
converter.ConvertToImage(tmpPdfPath, imageOutputDirPath);
//删除pdf临时文件
File.Delete(tmpPdfPath);
if (this.ConvertSucceed != null)
{
this.ConvertSucceed();
}
}
catch (Exception ex)
{
if (this.ConvertFailed != null)
{
this.ConvertFailed(ex.Message);
}
}
this.pdf2ImageConverter = null;
}
private void button1_Click(object sender, EventArgs e)
{
Pdf2ImageConverter wi = new Pdf2ImageConverter();
wi.ConvertToImage(@"D:\图片\2010xrss (1).pdf", @"D:\图片");
}
