Convert HTML to PDF in ASP.NET MVC

Question

Im working in a project which requires current html page to convert in pdf and that pdf will automatically save on button click on server and its reference will be save in da

Answer 1

use ABCpdf dll, here in text area we can write html code and on a button click corresponding pdf will be shown.ABCpdf trail version is easily available for downloding, adding linlk to download the ABCpdf dll https://www.websupergoo.com/download.htm

index.cshtml

      @using (Html.BeginForm("covertopdf", "simple", FormMethod.Post))
{
        

            Input Html: @Html.TextArea("Htmlcontent", new { @class = "form-control",@cols="160" , @rows="20"})

            
        
}

SimpleController.cs

 public class SimpleController : Controller
    {
        public class FileViewModel
        {
            public byte[] Content { get; set; }
            public string Extension { get; set; }
            public string FileName { get; set; }
        }

       [HttpPost]
       [ValidateInput(false)]
       public FileStreamResult covertopdf(string Htmlcontent)
        //public FileStreamResult covertopdf(file fo)
        {
            var result = ExecuteAction(() =>
            {
                var fileViewmodel = new FileViewModel
                {
                    Content = ConvertHtmlToPdf(Htmlcontent),
                    //Content= ConvertHtmlToPdf(fo.cont),
                    Extension = "application/pdf",
                    FileName = "Policy Information.pdf"
                };
                return fileViewmodel;
            }, "covertopdf");
            // return result;
            HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK);
            // Content is the file 
            Stream stream = new MemoryStream(result.Content);
            return new FileStreamResult(stream, "application/pdf")
            {

            };
        }



        public T ExecuteAction(Func action, string method)
        {
            try
            {
                return action.Invoke();
            }
            catch (Exception ex)
            {
                return default(T);
            }
        }



        protected byte[] ConvertHtmlToPdf(string html, string header = null, string footer = null, bool isPageNumberInFooter = false)
        {
            // Create ABCpdf Doc object
            var doc = new Doc();
            if (header == null && footer == null)
                doc.Rect.Inset(20, 20);
            else
                doc.Rect.String = "0 70 600 760"; /*padding from left, padding from bottom, width from left, height from bottom*/
            // Add html to Doc   
            //html = "";
            int theId = doc.AddImageHtml(html);

            // Loop through document to create multi-page PDF
            while (true)
            {
                if (!doc.Chainable(theId))
                    break;
                doc.Page = doc.AddPage();
                theId = doc.AddImageToChain(theId);
            }
            var count = doc.PageCount;

            /*****************Footer area******************/
            if (footer != null)
            {
                var newfooter = "";
                doc.Rect.String = "40 20 580 50";
                for (int i = 1; i <= count; i++)
                {

                    doc.PageNumber = i;
                    if (isPageNumberInFooter)
                    {
                        newfooter = footer.Replace("PageNumber", "Page " + i.ToString() + " of " + count.ToString());
                        int id = doc.AddImageHtml(newfooter);

                        while (true)
                        {
                            if (!doc.Chainable(id))
                                break;
                            id = doc.AddImageToChain(id);
                        }
                    }
                    else
                        doc.AddText(footer);
                }
            }
            /*****************Footer area******************/


            // Flatten the PDF
            for (int i = 1; i <= doc.PageCount; i++)
            {
                doc.PageNumber = i;
                doc.Flatten();
            }

            var pdf = doc.GetData();
            doc.Clear();
            // Get PDF as byte array. Couls also use .Save() to save to disk
            return pdf;
        }
    }