我正在使用Magick.NET并尝试创建multipage-TIFF文件.我的输入是PDF文件.但是将结果写入MemoryStream或将其作为字节数组导致错误:
iisexpress.exe: Error flushing data before directory write. `TIFFWriteDirectorySec’ @ error/tiff.c/TIFFErrors/551
但是当我将结果写入硬盘上的文件时,没有错误,文件也没问题.
这是我的代码:
var outputStream = new MemoryStream();
using (var inputPdf = new MagickImageCollection())
{
inputPdf.Read(rawData, settings);
using (var tif = new MagickImageCollection())
{
foreach (var pdf in inputPdf)
{
pdf.Depth = 8;
pdf.Format = MagickFormat.Tif;
tif.Add(pdf);
}
if (debug)
{
// Writing the data to a file is successful!
tif.Write(pathImage);
}
// But writing it to a stream results in the error!
//tif.Write(outputStream);
// Same as getting the data as byte-array!
var outputData = tif.ToByteArray(MagickFormat.Tif);
outputStream.Write(outputData, 0, outputData.Length);
}
}
解决方法:
解决了.
解决方案是设置压缩:
pdf.CompressionMethod = CompressionMethod.JPEG;
谁知道为什么?