I am using ASP.NET 3.5 with iTextSharp and I have the following code:
var templatePath = Server.MapPath(#"~/Templates/template1.pdf");
var newFilePath = Server.MapPath(#"~/TempFiles/new.pdf");
PdfReader pdfReader = new PdfReader(templatePath);
PdfStamper pdfStamper = new PdfStamper(pdfReader, new FileStream(newFilePath, FileMode.Create));
AcroFields pdfFormFields = pdfStamper.AcroFields;
pdfFormFields.SetField("Box1", "007");
pdfFormFields.SetField("Box2", "123456");
pdfStamper.FormFlattening = false;
pdfStamper.Close();
Response.ClearContent();
Response.Buffer = true;
Response.ContentType = "application/pdf";
Response.AddHeader("Content-Disposition", "attachment;filename=new.pdf"));
Response.WriteFile(newFilePath);
Response.End();
The above code fills out a pdf file and saves the new file to the TempFiles folder. It then prompts the user to either save or open the file. Can I achieve the same functionality without saving the file to the TempFiles location?
Yes, you can write directly to the output stream of the response. I haven't used PdfStamper, but here's how I do it when generating new PDFs:
doc = new iTextSharp.text.Document(PageSize.A4);
writer = iTextSharp.text.pdf.PdfWriter.GetInstance(doc, Response.OutputStream);
writer.SetFullCompression();
doc.Open();
It looks like you pass a stream into the PdfStamper constructor, so the following should work:
var templatePath = Server.MapPath(#"~/Templates/template1.pdf");
PdfReader pdfReader = new PdfReader(templatePath);
Response.ClearContent();
Response.Buffer = true;
Response.ContentType = "application/pdf";
Response.AddHeader("Content-Disposition", "attachment;filename=new.pdf"));
PdfStamper pdfStamper = new PdfStamper(pdfReader, Response.OutputStream);
AcroFields pdfFormFields = pdfStamper.AcroFields;
pdfFormFields.SetField("Box1", "007");
pdfFormFields.SetField("Box2", "123456");
pdfStamper.FormFlattening = false;
pdfStamper.Close();
Response.End();
Related
Can anyone tell me how can I create a pdf file using iTextSharp 7 and popup a save dialog instead of saving it to a specific disk location?
My test code is the following:
protected void btnPrint_OnClick(object sender, EventArgs e)
{
Document doc = new Document(PageSize.A4, 25f, 20f, 20f, 10f);
var output = new FileStream(Server.MapPath("MyFirstPDF.pdf"), FileMode.Create);
var writer = PdfWriter.GetInstance(doc, output);
doc.Open();
doc.Add(new Paragraph("test!"));
doc.Close();
}
The workaround I found is the following:
After creating the document:
string path = "C:\\...";
string fileName = "PdfFile.pdf";
FileInfo fileInfo = new FileInfo(path);
Byte[] FileBuffer = File.ReadAllBytes(fileInfo.FullName);
if (FileBuffer != null)
{
Response.ContentType = "application/pdf";
Response.AddHeader("Content-Disposition", "attachment; filename=" + fileName);
Response.AddHeader("content-length", FileBuffer.Length.ToString());
Response.BinaryWrite(FileBuffer);
Response.Flush();
//DELETE FILE AFTER DOWNLOAD
fileInfo.Delete();
Response.End();
}
I am using ASP.Net and Open office XML and I have been able to set the headers of the excel file.
However, I want to set the value to cells from say D2 to D1000 in a drop down fashion i.e. that the user can only select from a predefined list of values as in a drop down list.
How do I accomplish this?
The code for creating the excel is
List<ExcelExport> mpList = new List<ExcelExport>();
DataTable dt = ListToDataTable(mpList);
string attachment = string.Format("attachment;filename={0}-{1}.xlsx", ddlHealthFacility.SelectedItem.Text + " Excel export ", " ");
using (ExcelPackage pck = new ExcelPackage())
{
//Create the worksheet
ExcelWorksheet ws = pck.Workbook.Worksheets.Add("Monthly Plan");
ws.Cells["A1"].LoadFromDataTable(dt, true);
Byte[] fileBytes = pck.GetAsByteArray();
Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition", attachment);
Response.Charset = "";
Response.ContentType = "application/vnd.ms-excel";
StringWriter sw = new StringWriter();
Response.BinaryWrite(fileBytes);
Response.End();
}
I want to give a file name according to project name. This line below is naming pdf statically
Response.AddHeader("content-disposition", "attachment;filename=WeeklyReport.pdf");
output file name - weeklyreport.pdf
while giving dynamic name its not taking .pdf
Response.AddHeader("content-disposition", "attachment;filename=" + Projname + ".pdf");
output-TestingProject
here .pdf is missing , so not opening in pdf by default
To make pdf file and name it dynamically u can use like this
Response.AddHeader("content-disposition", Response.Clear();
Response.AddHeader("content-disposition", string.Format("attachment;filename=\"{0}.pdf\"", Projname));
Response.Cache.SetCacheability(HttpCacheability.NoCache);
System.IO.StringWriter stringWrite = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
design.RenderControl(htmlWrite);
string myText = stringWrite.ToString().Replace("&", "&");
StringReader sr = new StringReader(myText.ToString());
Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 100f, 0f);
Response.ContentType = "application/pdf";
PdfWriter writer = PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
pdfDoc.Open();
XMLWorkerHelper.GetInstance().ParseXHtml(writer, pdfDoc, sr);
pdfDoc.Close();
Response.End();
pdfDoc.Dispose();
var graphids = from o in db.OfflineCarts
join i in db.Graphs on o.ItemId equals i.ItemUserID
select i;
GridView gv = new GridView();
gv.DataSource = graphids.ToList();
gv.DataBind();
Response.ClearContent();
Response.Buffer = true;
Response.AddHeader("content-disposition", "attachment; filename=GraphTable.xls");
Response.ContentType = "application/ms-excel";
Response.Charset = "";
StringWriter sw = new StringWriter();
HtmlTextWriter htw = new HtmlTextWriter(sw);
gv.RenderControl(htw);
Response.Output.Write(sw.ToString());
Response.Flush();
Response.End();
Encryption();
public void Encryption()
{
string password = #"myKey123"; // Your Key Here
UnicodeEncoding UE = new UnicodeEncoding();
byte[] key = UE.GetBytes(password);
string cryptFile = "/Users/Neeraj/Downloads/UserFilesEncrypt.xls";
FileStream fsCrypt = new FileStream(cryptFile, FileMode.CreateNew);
RijndaelManaged RMCrypto = new RijndaelManaged();
CryptoStream rs = new CryptoStream(fsCrypt,
RMCrypto.CreateEncryptor(key, key),
CryptoStreamMode.Read);
CryptoStream cs = new CryptoStream(fsCrypt,
RMCrypto.CreateEncryptor(key, key),
CryptoStreamMode.Write);
string inputFile = "/Users/Neeraj/Downloads/GraphTable.xls";
FileStream fsIn = new FileStream(inputFile, FileMode.Open);
int data;
while ((data = fsIn.ReadByte()) != -1)
cs.WriteByte((byte)data);
fsIn.Close();
cs.Close();
fsCrypt.Close();
}
I am encrypting the file just instantaneously after it is downloaded by grid view in mvc5 but i am getting 0 byte encrypted file and when i am re downloading the file than i am getting proper encrypted file Can Anybody tell me what is wrong with the code or i have to delay encryption function after download for sometime
use System.Security
FileStream fsInput = new FileStream(sInputFilename,
FileMode.Open,
FileAccess.Read);
FileStream fsEncrypted = new FileStream(sOutputFilename,
FileMode.Create,
FileAccess.Write);
I use Sharepoint 2010 and I am developing a web part where on a button click event, a pdf file needs to be generated and opened directly. Should not be saving onto the disk.
I tried the below code
protected void Button1_OnClick(object sender, EventArgs e)
{
Document myDoc = new Document(PageSize.A4.Rotate());
try
{
PdfWriter.GetInstance(myDoc, new FileStream(#"C:\Directory\Test.pdf", FileMode.Create));
myDoc.Open();
myDoc.Add(new Paragraph("Hello World"));
}
catch (DocumentException ex)
{
Console.Error.WriteLine(ex.Message);
}
myDoc.Close();
}
I also tried the below code which also generates the file on the Server which I dont want.
Document document = new Document(PageSize.A4);
PdfWriter.GetInstance(document, new FileStream(HttpContext.Current.Server.MapPath("~/Test.pdf"), FileMode.Create));
document.Open();
var WelcomePara = new Paragraph("Hello World");
document.Add(WelcomePara);
document.Close();
This one creates the pdf file on the desktop, I need it to be opened in the pdf format.Can someone help me please.
Almost every time that something accepts a FileStream is actually really accepts a generic System.IO.Stream object which FileStream is a subclass of. This means that you can instead use its cousin System.IO.MemoryStream which is what you are looking for:
byte[] bytes;
using (System.IO.MemoryStream ms = new System.IO.MemoryStream()) {
using (iTextSharp.text.Document doc = new iTextSharp.text.Document(iTextSharp.text.PageSize.A4.Rotate())) {
using (iTextSharp.text.pdf.PdfWriter w = iTextSharp.text.pdf.PdfWriter.GetInstance(doc, ms)) {
doc.Open();
doc.NewPage();
doc.Add(new iTextSharp.text.Paragraph("Hello world"));
doc.Close();
bytes = ms.ToArray();
}
}
}
//Do whatever you want with the byte array here
You don't have to create the byte array if you don't want, I was just showing how to create a PDF and give you something ".net-like" for you to work with.
I was able to get it work finally.
using (var ms = new MemoryStream())
{
using (var document = new Document(PageSize.A4,50,50,15,15))
{
PdfWriter.GetInstance(document, ms);
document.Open();
document.Add(new Paragraph("HelloWorld"));
document.Close();
}
Response.Clear();
//Response.ContentType = "application/pdf";
Response.ContentType = "application/octet-stream";
Response.AddHeader("content-disposition", "attachment;filename= Test.pdf");
Response.Buffer = true;
Response.Clear();
var bytes = ms.ToArray();
Response.OutputStream.Write(bytes, 0, bytes.Length);
Response.OutputStream.Flush();
}
This Works for me.
using (var ms = new MemoryStream())
{
using (var document = new Document(PageSize.A4,50,50,15,15))
{
// step 2
PdfWriter writer = PdfWriter.GetInstance(document, ms);
// step 3
document.Open();
// XML Worker
XMLWorker worker = new XMLWorker(css, true);
XMLParser p = new XMLParser(worker);
p.Parse(new StringReader(--Your HTML--));
// step 5
document.Close();
}
Byte[] FileBuffer = ms.ToArray();
if (FileBuffer != null)
{
Response.ContentType = "application/pdf";
Response.AddHeader("content-length", FileBuffer.Length.ToString());
Response.BinaryWrite(FileBuffer);
}
}