引用
using Ghostscript.NET;
using Ghostscript.NET.Rasterizer;
需要安装 exe文件
public static GhostscriptVersionInfo _lastInstalledVersion = null;
public static GhostscriptRasterizer _rasterizer = null;
PdfToImages(string pdfInputPath, string imageOutputPath）
{
//解析度
int desired_x_dpi = Convert.ToInt32(96);
int desired_y_dpi = Convert.ToInt32(96);
Log.writeLog("生成临时文件夹");
var destFile = GetFilePath(pdfInputPath);
Log.writeLog("复制pdf资料");
System.IO.File.Copy(pdfInputPath, destFile, true);
Log.writeLog("复制pdf资料完成");
if (System.IO.File.Exists(destFile))
{
try
{
_lastInstalledVersion = GhostscriptVersionInfo.GetLastInstalledVersion( GhostscriptLicense.GPL | GhostscriptLicense.AFPL, GhostscriptLicense.GPL);
_rasterizer = new GhostscriptRasterizer();
_rasterizer.Open(destFile, _lastInstalledVersion, false);
for (var i = 1; i <= endPageNum; i++)
{
string pageFilePath = Path.Combine(imageOutputPath, imageName + "_" + i.ToString() + "." + imageFormat.ToString());
Image img = _rasterizer.GetPage(desired_x_dpi, desired_y_dpi, i);
img.Save(pageFilePath, ImageFormat.Jpeg);
}
_rasterizer.Dispose();
}
catch (Exception ex)
{
Log.writeLog("Exception:" + ex.ToString());
System.IO.File.Delete(destFile);
}
finally
{
Log.writeLog("finally：删除资料");
System.IO.File.Delete(destFile);
//System.IO.Direc
}
/// <summary>
/// 根据源文件路径获取新重新命名的文件路径
/// </summary>
/// <param name="filePath"></param>
/// <returns></returns>
static string GetFilePath(string filePath)
{
if (string.IsNullOrWhiteSpace(filePath))
{
return string.Empty;
}
else
{
return string.Format("{0}{1}{2}", filePath.Substring(0, filePath.LastIndexOf(‘\\‘) + 1), Guid.NewGuid().ToString("N").Replace("-", ""), filePath.Substring(filePath.LastIndexOf(‘.‘)));
}
}