Startup.cs

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using System;
using System.IO;

namespace RedLeg.Forms
{
    public class Startup
    {
        // This method gets called by the runtime. Use this method to add services to the container.
        // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
        public void ConfigureServices(IServiceCollection services)
        {
            // Who needs the owner password?

            iTextSharp.text.pdf.PdfReader.AllowOpenWithFullPermissions = true;

            services.AddSwaggerGen(c =>
            {
                c.SwaggerDoc("v1", new Microsoft.OpenApi.Models.OpenApiInfo
                {
                    Title = "RedLeg.Forms",
                    Version = "v1",
                    Contact = new Microsoft.OpenApi.Models.OpenApiContact
                    {
                        Name = "Matt Wagner",
                        Email = "Matt@RedLeg.dev",
                        Url = new Uri("https://github.com/mattgwagner/RedLeg.Forms")
                    }
                });

                c.MapType<FileContentResult>(() => new Microsoft.OpenApi.Models.OpenApiSchema { Type = "file" });

                c.IncludeXmlComments(Path.Combine(AppContext.BaseDirectory, "RedLeg.Forms.xml"));
            });

            services
                .AddMvc()
                .AddJsonOptions(options =>
                {
                    options.JsonSerializerOptions.Converters.Add(new System.Text.Json.Serialization.JsonStringEnumConverter());
                })
                .SetCompatibilityVersion(CompatibilityVersion.Latest);
        }

        // 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();
            }

            app.UseHttpsRedirection();

            app.UseRouting();

            app.UseSwagger();

            app.UseSwaggerUI(c =>
            {
                c.SwaggerEndpoint("/swagger/v1/swagger.json", "RedLeg.Forms");
                c.RoutePrefix = string.Empty;
            });

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapDefaultControllerRoute();
            });
        }
    }
}