通过 .NET SDK 解析 PDF 以按 Id 提取图像

using Aspose.Pdf.Cloud.Sdk.Model;

namespace Parser
{
    public class GetImage
    {
        public static async Task Extract(string documentName, string imageId, string remoteFolder)
        {
		// Get your AppSid and AppSecret from https://dashboard.aspose.cloud (free registration required). 
		pdfApi = new PdfApi(AppSecret, AppSid);

                using (var file = File.OpenRead(Path.Combine(localFolder, documentName)))
		{ // Upload the local PDF to cloud storage folder name.
                    FilesUploadResult uploadResponse = await pdfApi.UploadFileAsync(Path.Combine(remoteFolder, documentName), documentName);
                    Console.WriteLine(uploadResponse.Uploaded[0]);
                }

                // Parse PDF for image by Id extraction in cloud storage.
                ImageResponse response = await helper.pdfApi.GetImageAsync(documentName, imageId, folder: remoteFolder);

                // Checks the response and logs the result.
                if (response == null)
                    Console.WriteLine("GetImage(): Unexpected error!");
                else if (response.Code < 200 || response.Code > 299)
                    Console.WriteLine("GetImage(): Failed to receive Image from the document.");
                else
                { // Show images.
                    Console.WriteLine("GetImage(): Image '{0}' successfully received from the document '{1}.", imageId, documentName);
                    Console.WriteLine(response.Image.ToString());
                }
            }
        }
    }