Плагин Doconut Viewer – Converter

        using System;
        using System.IO;
        using System.Threading;
        using System.Threading.Tasks;
        using Doconut.Plugins.Converter; // namespace where DocumentConverter lives

        // DocumentConverter is registered via AddDoconut and injected by the DI container.
        // This example converts a PDF file to DOCX using the current Doconut.NET8 API.

        public async Task ConvertPdfToDocxAsync(CancellationToken ct = default)
        {
            // Open the source PDF file (placeholder path as in the original sample).
            await using var pdfStream = File.OpenRead("sample.pdf");

            // Perform the conversion. The source extension must include the leading dot.
            // ConversionTarget.Docx specifies the desired output format.
            Stream docxStream = await converter.ConvertAsync(
                pdfStream,
                sourceExtension: ".pdf",
                target: ConversionTarget.Docx,
                password: null, // no password for this example
                ct: ct);

            // Save the resulting DOCX file (placeholder output path).
            await using var output = File.Create("sample.docx");
            await docxStream.CopyToAsync(output, ct);
        }

        // Note: In a real ASP.NET Core app you would inject DocumentConverter into the endpoint
        // and use it there, e.g.:
        // app.MapPost("/api/convert", async (DocumentConverter converter, IFormFile file, CancellationToken ct) => { ... });