public List <Bitmap> ConvertPagedPdfToBitmaps(System.IO.Stream pdfStream)
{
string ghostscriptLibraryPath = "C:\\Program Files (x86)\\gs\\gs9.50\\bin\\";
MagickNET.SetGhostscriptDirectory(ghostscriptLibraryPath);
MagickNET.SetNativeLibraryDirectory(ghostscriptLibraryPath);
MagickReadSettings settings = new MagickReadSettings()
{
Density = new Density(300, 300)
};
var bitmapImages = new List <System.Drawing.Bitmap>();
using (MagickImageCollection images = new MagickImageCollection())
{
// Add all the pages of the pdf file to the collection
images.Read(pdfStream, settings); //MagickImageCollection_ReadStream
foreach (MagickImage image in images)
{
bitmapImages.Add(image.ToBitmap());
}
}
return(bitmapImages);
}
// ReSharper disable once UnusedMember.Global
public static async Task <IActionResult> Function(
[HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = "RetrieveImage/{*image}")]
HttpRequestMessage req,
[Blob("{image}", FileAccess.Read, Connection = "ImageStorageAccount")]
Stream s,
ILogger log)
{
// var ms = new MemoryStream();
// await s.CopyToAsync(ms);
// ms.Seek(0, SeekOrigin.Begin);
var magickNetNativeLibraryDirectory = Environment.GetEnvironmentVariable("MAGICK_NET_NATIVE", EnvironmentVariableTarget.Process);
MagickNET.SetNativeLibraryDirectory(magickNetNativeLibraryDirectory);
var defines = new JpegWriteDefines
{
Extent = 4 * 1024
};
var ms = new MemoryStream();
using (var image = new MagickImage(s))
{
image.Settings.SetDefines(defines);
image.Write(ms);
}
ms.Seek(0, SeekOrigin.Begin);
return(new FileStreamResult(ms, "image/jpg"));
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
app.UseStatusCodePages("text/plain", "{0}");
}
app.UseStaticFiles();
app.UseRouting();
app.UseResponseCaching();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
});
Directory.CreateDirectory(ImageGallery.Configuration.Get.TempDir);
MagickNET.SetTempDirectory(ImageGallery.Configuration.Get.TempDir);
MagickNET.SetNativeLibraryDirectory(ImageGallery.Configuration.Get.TempDir);
FFmpeg.SetExecutablesPath(Path.Combine(env.ContentRootPath, "ffmpeg"));
}