如何在 .NET 中使用 ChatGPT 处理 PDF 文本

PM> Install-Package Aspose.PDF

using Aspose.Pdf.Plugins;
using System.IO;
using System.Threading.Tasks;

string inputPdfPath = @"C:\Samples\source.pdf";
string outputPdfPath = @"C:\Samples\ChatGPT_output.pdf";

using (var plugin = new PdfChatGpt())
{
    var options = new PdfChatGptRequestOptions();
    options.AddInput(new FileDataSource(inputPdfPath));    // Use full PDF text as message
    options.AddOutput(new FileDataSource(outputPdfPath));   // Path for the output PDF
    
    options.ApiKey = "Your-OpenAI-API-Key";                // REQUIRED: Your API key for ChatGPT
    options.MaxTokens = 1000;                              // Limit response size
    options.Query = "Summarize the contents of this document."; // Or ask any question about the PDF

    options.Messages.Add(new Message
    {
        Content = "You are a document assistant. Summarize the provided PDF text.",
        Role = Role.System
    });
    options.Messages.Add(new Message
    {
        Content = "What are the main topics covered in this PDF?",
        Role = Role.User
    });

    // Process the request and await the result
    var result = await plugin.ProcessAsync(options);
    var fileResultPath = result.ResultCollection[0].Data; // Path to the output PDF
    var chatCompletion = result.ResultCollection[1].Data as ChatCompletion; // ChatGPT API object

    // Access the generated response text if needed:
    var firstChoice = chatCompletion?.Choices?.FirstOrDefault();
    var responseText = firstChoice?.Message?.Content;

    Console.WriteLine($"PDF generated at: {fileResultPath}");
    Console.WriteLine("ChatGPT response:");
    Console.WriteLine(responseText);
}

try
{
    // (Code above)
}
catch (Exception ex)
{
    Console.WriteLine($"Error during ChatGPT PDF processing: {ex.Message}");
}

using Aspose.Pdf.Plugins;
using System;
using System.IO;
using System.Linq;
using System.Threading.Tasks;

class Program
{
    static async Task Main()
    {
        string inputPdfPath = @"C:\Samples\source.pdf";
        string outputPdfPath = @"C:\Samples\ChatGPT_output.pdf";

        using (var plugin = new PdfChatGpt())
        {
            var options = new PdfChatGptRequestOptions();
            options.AddInput(new FileDataSource(inputPdfPath));
            options.AddOutput(new FileDataSource(outputPdfPath));
            options.ApiKey = "Your-OpenAI-API-Key";
            options.MaxTokens = 1000;
            options.Query = "Summarize the content of this PDF document.";

            try
            {
                var result = await plugin.ProcessAsync(options);
                var fileResultPath = result.ResultCollection[0].Data;
                var chatCompletion = result.ResultCollection[1].Data as ChatCompletion;
                var firstChoice = chatCompletion?.Choices?.FirstOrDefault();
                var responseText = firstChoice?.Message?.Content;

                Console.WriteLine($"PDF generated at: {fileResultPath}");
                Console.WriteLine("ChatGPT response:");
                Console.WriteLine(responseText);
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Error: {ex.Message}");
            }
        }
    }
}