hot convert byte into pdf file

Question

Hello

i tried to convert byte (which is store in table )into pdf file(download pdf file)

here is my code in mvc

pdf is genrated but not loaded

what is wrong in code

public FileResult DownloadPDF(string Id)
        {
            AttachFileSC mAttachFileSC = null;
            DataSet mDataSet = null;
            MemoryStream pdfStream = new MemoryStream();
            string FileName = string.Empty;
            try
            {
                mAttachFileSC = new AttachFileSC();
                FileManagerBLL mFileManagerBLL = new FMS.Models.BLL.FileManagerBLL();
                mDataSet = mFileManagerBLL.DownloadPDF(Id, UserObj.UserId);
                foreach (DataRow mDataRow in mDataSet.Tables[0].Rows)
                {
                    mAttachFileSC.FileName = mDataRow["FileName"].ToString();
                    mAttachFileSC.FileSize = mDataRow["FileSize"].ToString();
                    mAttachFileSC.FileExt = mDataRow["FileExt"].ToString();
                    mAttachFileSC.FileByte = (byte[])mDataSet.Tables[0].Rows[0]["FileByte"];
                }
                FileName = (mAttachFileSC.FileName).Replace(mAttachFileSC.FileExt, ".pdf");
                pdfStream.Write(mAttachFileSC.FileByte, 0, mAttachFileSC.FileByte.Length);
                pdfStream.Position = 0;
            }
            catch (Exception ex)
            {
                throw ex;
            }
            return File(pdfStream, System.Net.Mime.MediaTypeNames.Application.Octet, FileName);


        }

Jaimin Shethiya · Answer

Hello, Can you please check with the below code. byte[] bytes = //assign or any method for generate byte array; FileStream fs = new FileStream(@"c:\demo.pdf",FileMode.OpenOrCreate); fs.Write(bytes,0,bytes.Length); fs.Close(); Thanks

Salman Beg · Answer

Hi. You can do like this, https://stackoverflow.com/questions/9806501/save-byte-stream-as-pdf-file-asp-net

Marvin Reid · Answer

You can take your byte data and convert it into a PDF using the DocumentConverter class. Here is an example you can build on: string b64Str = "Your base64 string add here"; byte[] bytes = Convert.FromBase64String(b64Str); using (MemoryStream ms = new MemoryStream(bytes)) { var LDfile = DocumentFactory.LoadFromStream(ms, new LoadDocumentOptions()); var documentConverter = new DocumentConverter(); var jobData = new DocumentConverterJobData { DocumentFormat = DocumentFormat.Pdf, Document = LDfile, OutputDocumentStream = ms }; var job = documentConverter.Jobs.CreateJob(jobData); documentConverter.Jobs.RunJob(job); if (job.Status == DocumentConverterJobStatus.Success) { } File.WriteAllBytes("test.pdf", ms.ToArray()); } https://www.leadtools.com/help/sdk/tutorials/dotnet-convert-files-with-the-document-converter.html

Mageshwaran R · Answer

Hi, please check this link: https://stackoverflow.com/questions/57353719/pdf-file-download-from-byte

Rupesh Kahane · Answer

Refer below links 1) http://social.msdn.microsoft.com/Forums/en-US/csharplanguage/thread/6810a67f-66d9-4ce4-87e5-06dbbb754730/ 2) http://www.codeproject.com/Questions/100792/How-to-convert-a-byte-array-to-a-pdf 3) Have you tried using this library... http://sourceforge.net/projects/itextsharp/

Rahul Prasad · Answer

You could try Spire.PDF. It supports to load a file from stream and save as a .pdf file. https://www.e-iceblue.com/Introduce/pdf-for-net-introduce.html