如何设置 ImageMagick PDF 的标题

Question

当我在浏览器中查看 PDF 时，它有一个以 Magic 开头的图块... 有没有办法设置生成的 PDF 文件的标题？

        public MemoryStream ConvertToTiff(Stream inputStream)
        {
            try
            {
                inputStream.Seek(0, SeekOrigin.Begin);
                MemoryStream outputStream = new MemoryStream();
                using (MagickImageCollection imageMagickOut = new MagickImageCollection())
                using (MagickImageCollection imageMagickIn = new MagickImageCollection())
                {
                    imageMagickIn.Read(inputStream, _readSettings);
                    foreach (MagickImage img in imageMagickIn)
                    {
                        img.Format = MagickFormat.Tif;
                        img.SetCompression(CompressionMethod.Group4);
                        imageMagickOut.Add(img);
                    }
                    imageMagickOut.Write(outputStream, MagickFormat.Tif);
                }
                outputStream.Seek(0, SeekOrigin.Begin);
                return outputStream;
            }catch( Exception e )
            {
                throw e;
            }
        }

使用 nuget 包 Magick.Net.Core & Magick.Net-Q16-x64 版本 10.0.0

Answer 1

我将代码更改为以下内容。

                    foreach (MagickImage img in imageMagickIn)
                    {
                        img.Format = MagickFormat.Tif;
                        img.SetCompression(CompressionMethod.Group4);

                        img.Settings.SetDefine(MagickFormat.Pdf, "Title", "");
                        img.Settings.SetDefine(MagickFormat.Pdf, "Producer", "");
                        img.Settings.SetDefine(MagickFormat.Pdf, "Author", "");

                        imageMagickOut.Add(img);
                    }