Convert Image to pdf

Anshita Samal

9y1.9kLearn iOS Programming

Code for how to convert a image to pdf

7 Replies

Know the answer? Post it — somebody with the same question will find it here.

Hussam Barouqa9y ago
The most direct approach you could consider is to convert the HTML page into a rasterized image then save it as a PDF. This will maintain the overall design and images in the page. If you want to also keep text selectable after doing this, you could perform OCR on the result.
You can do this with a toolkit like LEADTOOLS (https://www.leadtools.com/downloads?category=main) which has image and document conversion and OCR features that you can use.
To convert an HTML page into PDF, there is .NET code you can implement as a service:
RasterCodecs codecs = new RasterCodecs();
codecs.convert("input.html", "output.pdf", RasterImageFormat.RasPdfJpeg411, 0, 0, 0, null);

If you want to maintain the text during conversion, another thing you can try is the DocumentConverters class:
using (DocumentConverter documentConverter = new DocumentConverter())
{
var format = DocumentFormat.Pdf;
var jobData = DocumentConverterJobs.CreateJobData(inFile, outFile, format);
jobData.JobName = "conversion job";
var job = documentConverter.Jobs.CreateJob(jobData);
documentConverter.Jobs.RunJob(job);
}

Check out this forum topic for more features that can be implemented with ASP.NET MVC, including OCR:
https://www.leadtools.com/support/forum/posts/m41793-HTML5-Projects-with-ASP-NET#post41793
alice yang9y ago
Hi Sidhartha Patnaik,

You can use Spire.Doc to convert html/aspx page to PDF.

html to PDF:
https://www.e-iceblue.com/Tutorials/Spire.Doc/Spire.Doc-Program-Guide/Conversion/NET-Word-Convert-HTML-file-to-PDF-and-XPS.html

aspx page to PDF:
document = new Document();
            using (MemoryStream buffer = new MemoryStream())
            {
                using (TextWriter writer = new StreamWriter(buffer, Encoding.UTF8))
                {
                    using (HtmlTextWriter htmlWriter = new HtmlTextWriter(writer))
                    {
                        this.RenderControl(htmlWriter);
                        htmlWriter.Flush();
                        writer.Flush();
                        buffer.Position = 0;

                        string stylesheet = "Default.css";
                        using (StreamReader reader = new System.IO.StreamReader(buffer, Encoding.UTF8))
                        {
                            String baseHref = Request.Url.AbsoluteUri;
                            document.LoadHTML(reader, baseHref, Spire.Doc.Documents.XHTMLValidationType.None);
                            document.HtmlExportOptions.CssStyleSheetType = CssStyleSheetType.External;
                            document.HtmlExportOptions.CssStyleSheetFileName = stylesheet;
                            document.SaveToFile("Test.pdf", Spire.Doc.FileFormat.PDF, Response, HttpContentType.Attachment);
                        }
                    }
                }
            }
If my answer helps, please mark it as answer. Thank you.
Uehara Ayaka9y ago
Try this code using Spire.PDF. It enables you to convert a HTML page that contains image to PDF.
PdfDocument pdf = new PdfDocument();
PdfPageSettings setting = new PdfPageSettings();
setting.Size = PdfPageSize.A4;

PdfHtmlLayoutFormat htmlLayoutFormat = new PdfHtmlLayoutFormat();
htmlLayoutFormat.IsWaiting = false;
string htmlCode = File.ReadAllText("HTML example.html");
Thread thread = new Thread(() =>
{ pdf.LoadFromHTML(htmlCode, false, setting, htmlLayoutFormat); });
thread.SetApartmentState(ApartmentState.STA);
thread.Start();
thread.Join();

pdf.SaveToFile("Html2Pdf.pdf");
reference: https://janewdaisy.wordpress.com/2017/02/07/convert-html-string-to-pdf-using-free-api-in-c/
If you need to covnert a URL to PDF, then check this link:
https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Convert-HTML-to-PDF-with-New-Plugin.html
Sidhartha Patnaik9y ago
Like a resume format.
Sidhartha Patnaik9y ago
Thanks
Rajeesh sir,

Actually we need to convert a html page to pdf format which includs a image which is in our computer or project folder or retrived by session data using fileupload control in asp.net with code C#.

Thanks...
Ranjeet Patra9y ago
http://stackoverflow.com/questions/1642280/jpg-to-pdf-convertor-in-c-sharp
Rajeesh Menoth9y ago
Hi,

You can choose iTextSharp or Eiceblue libraries in C#.

Reference :

https://www.codeproject.com/Articles/28609/Converting-Image-Files-to-PDF

http://www.c-sharpcorner.com/forums/how-to-convert-jpg-file-into-pdf-using-c-sharp

https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/C-/VB.NET-Convert-Image-to-PDF.html

Convert Image to pdf

Rajeesh sir,