C#-PDF转图片

1.引用：Aspose.PDF，版本：11.1.1.0

        /// <summary>
        /// Pdf转图片
        /// </summary>
        /// <param name="sourcePath"> PDF 文件路径 </param>
        /// <param name="imageSavePath">图片保存的路径 </param>
        /// <returns></returns>
        public bool PdfToPic(string sourcePath, string imageSavePath)
        {
            try
            {
                new Aspose.Pdf.License().SetLicense(new MemoryStream(Convert.FromBase64String(AppConfig.AsposeKey)));

                if (!File.Exists(sourcePath)) return false;

                Aspose.Pdf.Document pdfDocument = new Aspose.Pdf.Document(sourcePath);

                for (int pageCount = 1; pageCount <= pdfDocument.Pages.Count; pageCount++)
                {
                    // 为每一页生成一个唯一的文件名
                    string pageSavePath = Path.Combine(Path.GetDirectoryName(imageSavePath), $"page_{pageCount}.jpg");

                    //判断目录
                    string directory = Path.GetDirectoryName(imageSavePath);
                    if (!Directory.Exists(directory))
                        Directory.CreateDirectory(directory);

                    // 使用 'using' 自动管理资源
                    using (FileStream imageStream = new FileStream(pageSavePath, FileMode.Create))
                    {
                        // 创建分辨率对象
                        Resolution resolution = new Resolution(300);
                        JpegDevice jpegDevice = new JpegDevice(resolution, 100);

                        var pdfFile = pdfDocument.Pages[pageCount];

                        // 转换特定页面并将图像保存到流中
                        jpegDevice.Process(pdfFile, imageStream);
                    }
                }
            }
            catch (Exception ex)
            {
                // 记录错误信息
                Console.WriteLine($"Error: {ex.Message}");
                return false;
            }
            return true;
        }

 /// <summary>
    /// 全局静态配置
    /// </summary>
    public class AppConfig
    {
        /// <summary>
        /// Key值
        /// </summary>
        public const string AsposeKey = @"PExpY2Vuc2U+DQogIDxEYXRhPg0KICAgIDxMaWNlbnNlZFRvPkFzcG9zZSBTY290bGFuZCB
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                                                            dGVkIHBoeXNpY2FsIGxvY2F0aW9uczwvTGljZW5zZU5vdGU+DQogICAgPE9yZGVySUQ+MTQ
                                                            wNDA4MDUyMzI0PC9PcmRlcklEPg0KICAgIDxVc2VySUQ+OTQyMzY8L1VzZXJJRD4NCiAgIC
                                                            A8T0VNPlRoaXMgaXMgYSByZWRpc3RyaWJ1dGFibGUgbGljZW5zZTwvT0VNPg0KICAgIDxQc
                                                            m9kdWN0cz4NCiAgICAgIDxQcm9kdWN0PkFzcG9zZS5Ub3RhbCBmb3IgLk5FVDwvUHJvZHVj
                                                            dD4NCiAgICA8L1Byb2R1Y3RzPg0KICAgIDxFZGl0aW9uVHlwZT5FbnRlcnByaXNlPC9FZGl
                                                            0aW9uVHlwZT4NCiAgICA8U2VyaWFsTnVtYmVyPjlhNTk1NDdjLTQxZjAtNDI4Yi1iYTcyLT
                                                            djNDM2OGYxNTFkNzwvU2VyaWFsTnVtYmVyPg0KICAgIDxTdWJzY3JpcHRpb25FeHBpcnk+M
                                                            jAxNTEyMzE8L1N1YnNjcmlwdGlvbkV4cGlyeT4NCiAgICA8TGljZW5zZVZlcnNpb24+My4w
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                                                            aW5RYnFGZkt2L3J1dHR2Y3hvUk9rYzF0VWUwRHRPNmNQMVpmNkowVmVtZ1NZOGkvTFpFQ1R
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                                                            V0ZVJpNUhyZmc9PC9TaWduYXR1cmU+DQo8L0xpY2Vuc2U+";
    }