I am trying to convert a series of images taken from OpenFileDialog() to one PDF using iTextSharp in C#. Here is what I'm running. When I select files I get the error: "System.NotSupportedException: 'Stream does not support reading.'"
on the line :
var image = iTextSharp.text.Image.GetInstance(imageStream);
I am wondering what this error means, or what I could fix to resolve the issue. Thanks.
namespace WindowsFormsApp2
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private OpenFileDialog ofd = new OpenFileDialog { Multiselect = true, Filter = "Image files | * .jpg;*.jpeg;*.png;" };
// Open file button
private void button1_Click(object sender, EventArgs e)
{
// Run code only if a file is selected
if (ofd.ShowDialog() == DialogResult.OK)
{
Document doc = new Document();
using (var stream = new FileStream("test.pdf", FileMode.Create, FileAccess.Write, FileShare.None))
{
foreach (String file in ofd.SafeFileNames)
{
using (var imageStream = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
PdfWriter.GetInstance(doc, stream);
doc.Open();
var image = iTextSharp.text.Image.GetInstance(imageStream);
doc.Add(image);
doc.Close();
}
}
}
}
}
}
}
Here is the main code:
namespace WindowsFormsApp2
{
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}
}
}
Try the code below, I've moved the opening and closing of doc outside of the foreach loop. Calling doc.Close() closes the parent file stream, so it's important to only call doc.Close() once all the images have been added.
using (var stream = File.Create("test.pdf"))
using (var doc = new Document())
using (var pdfWriter = PdfWriter.GetInstance(doc, stream))
{
doc.Open();
foreach (var file in ofd.SafeFileNames)
{
using (var imageStream = File.OpenRead(file))
{
var image = Image.GetInstance(imageStream);
doc.Add(image);
}
}
doc.Close();
}
I want to save a PDF file in a flatted mode. I have tried all the online solution but never works in my code.
I have a file generated with ITextSharp and Acrofields. When i try to set the option pdf.FormFlattening = true; it doesn't work for my solution.
The file is generated from an "Adobe Static PDF form" created with Adobe Livecycle Designer
This is my function:
using (var streamPdf = new MemoryStream())
{
PdfStamper pdf;
using (var pdfReader = new PdfReader(Application.StartupPath + PathToFile + Template))
using (pdf = new PdfStamper(pdfReader, streamPdf))
{
AcroFields pdfFormFields = pdf.AcroFields;
foreach (var field in fields)
{
pdfFormFields.SetField(field.FieldName, field.FieldValue.Trim());
}
}
foreach (var de in pdfReader.AcroFields.Fields)
{
pdfFormFields.SetFieldProperty(de.Key.ToString(),"setfflags",PdfFormField.FF_READ_ONLY,null);
}
pdf.FormFlattening = true;
pdf.AcroFields.GenerateAppearances = true;
pdf.Close();
_pdf = streamPdf.ToArray();
}
string filename = "name.pdf";
using (var fs = new FileStream(filename, FileMode.Create))
{
fs.Write(_pdf, 0, _pdf.Count());
fs.Close();
}
The file generated is a static PDF and i need to have a PDF without Fields.
Thanks to all
Getting merged pdf but corrupted file that I can't open using the below code. The 'targetPDF' is the final merged pdf file and 'fileNames' has all the single pdfs. Please help. Thanks in advance.
Using (FileStream stream = new FileStream(targetPDF, FileMode.Create, FileAccess.Write))
{
Document document = new Document();
PdfCopy pdf = new PdfCopy(document, stream);
if (pdf == null)
{
return;
}
document.Open();
foreach (string file in fileNames)
{
PdfReader reader = new PdfReader(file);
reader.ConsolidateNamedDestinations();
for (int i = 1; i <= reader.NumberOfPages; i++)
{
PdfImportedPage page = pdf.GetImportedPage(reader, i);
pdf.AddPage(page);
//pdf.AddDocument(new PdfReader(file));
// pdf.AddPage(pdf.GetImportedPage(reader, 1));
}
reader.Close();
}
}
Change this lines
Document document = new Document();
PdfCopy pdf = new PdfCopy(document, stream);
To :
using(Document document = new Document())
{
using(PdfCopy pdf = new PdfCopy(document, stream))
{
//do staff here...
}
}
So that after the work is done all streams close and files were not locked.
I looked into iTextSharp and SharpPDF and Report.Net as well as PDFSharp.
None of these open source projects have good documentation OR do not work with VS 2012.
Does anyone have a recommended solution or can show me the documentation?
My employer blocks many sites and although Google is not blocked, some of the results are.
I plan on using C# with WinForms and obtaining my data from an Access DB
Hey #Cocoa Dev get this a complete example with diferent functions.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using iTextSharp.text.pdf;
using System.Data;
using System.Text;
using System.util.collections;
using iTextSharp.text;
using System.Net.Mail;
public partial class PDFScenarios : System.Web.UI.Page
{
public string P_InputStream = "~/MyPDFTemplates/ex1.pdf";
public string P_InputStream2 = "~/MyPDFTemplates/ContactInfo.pdf";
public string P_InputStream3 = "~/MyPDFTemplates/MulPages.pdf";
public string P_InputStream4 = "~/MyPDFTemplates/CompanyLetterHead.pdf";
public string P_OutputStream = "~/MyPDFOutputs/ex1_1.pdf";
//Read all 'Form values/keys' from an existing multi-page PDF document
public void ReadPDFformDataPageWise()
{
PdfReader reader = new PdfReader(Server.MapPath(P_InputStream3));
AcroFields form = reader.AcroFields;
try
{
for (int page = 1; page <= reader.NumberOfPages; page++)
{
foreach (KeyValuePair<string, AcroFields.Item> kvp in form.Fields)
{
switch (form.GetFieldType(kvp.Key))
{
case AcroFields.FIELD_TYPE_CHECKBOX:
case AcroFields.FIELD_TYPE_COMBO:
case AcroFields.FIELD_TYPE_LIST:
case AcroFields.FIELD_TYPE_RADIOBUTTON:
case AcroFields.FIELD_TYPE_NONE:
case AcroFields.FIELD_TYPE_PUSHBUTTON:
case AcroFields.FIELD_TYPE_SIGNATURE:
case AcroFields.FIELD_TYPE_TEXT:
int fileType = form.GetFieldType(kvp.Key);
string fieldValue = form.GetField(kvp.Key);
string translatedFileName = form.GetTranslatedFieldName(kvp.Key);
break;
}
}
}
}
catch
{
}
finally
{
reader.Close();
}
}
//Read and alter form values for only second and
//third page of an existing multi page PDF doc.
//Save the changes in a brand new pdf file.
public void ReadAlterPDFformDataInSelectedPages()
{
PdfReader reader = new PdfReader(Server.MapPath(P_InputStream3));
reader.SelectPages("1-2"); //Work with only page# 1 & 2
using (PdfStamper stamper = new PdfStamper(reader, new FileStream(Server.MapPath(P_OutputStream), FileMode.Create)))
{
AcroFields form = stamper.AcroFields;
var fieldKeys = form.Fields.Keys;
foreach (string fieldKey in fieldKeys)
{
//Replace Address Form field with my custom data
if (fieldKey.Contains("Address"))
{
form.SetField(fieldKey, "MyCustomAddress");
}
}
//The below will make sure the fields are not editable in
//the output PDF.
stamper.FormFlattening = true;
}
}
//Extract text from an existing PDF's second page.
private string ExtractText()
{
PdfReader reader = new PdfReader(Server.MapPath(P_InputStream3));
string txt = PdfTextExtractor.GetTextFromPage(reader, 2, new LocationTextExtractionStrategy());
return txt;
}
//Create a brand new PDF from scratch and without a template
private void CreatePDFNoTemplate()
{
Document pdfDoc = new Document();
PdfWriter writer = PdfWriter.GetInstance(pdfDoc, new FileStream(Server.MapPath(P_OutputStream), FileMode.OpenOrCreate));
pdfDoc.Open();
pdfDoc.Add(new Paragraph("Some data"));
PdfContentByte cb = writer.DirectContent;
cb.MoveTo(pdfDoc.PageSize.Width / 2, pdfDoc.PageSize.Height / 2);
cb.LineTo(pdfDoc.PageSize.Width / 2, pdfDoc.PageSize.Height);
cb.Stroke();
pdfDoc.Close();
}
private void fillPDFForm()
{
string formFile = Server.MapPath(P_InputStream);
string newFile = Server.MapPath(P_OutputStream);
PdfReader reader = new PdfReader(formFile);
using (PdfStamper stamper = new PdfStamper(reader, new FileStream(newFile, FileMode.Create)))
{
AcroFields fields = stamper.AcroFields;
// set form fields
fields.SetField("name", "John Doe");
fields.SetField("address", "xxxxx, yyyy");
fields.SetField("postal_code", "12345");
fields.SetField("email", "johndoe#xxx.com");
// flatten form fields and close document
stamper.FormFlattening = true;
stamper.Close();
}
}
//Helper functions
private void SendEmail(MemoryStream ms)
{
MailAddress _From = new MailAddress("XXX#domain.com");
MailAddress _To = new MailAddress("YYY#a.com");
MailMessage email = new MailMessage(_From, _To);
Attachment attach = new Attachment(ms, new System.Net.Mime.ContentType("application/pdf"));
email.Attachments.Add(attach);
SmtpClient mailSender = new SmtpClient("Gmail-Server");
mailSender.Send(email);
}
private void DownloadAsPDF(MemoryStream ms)
{
Response.Clear();
Response.ClearContent();
Response.ClearHeaders();
Response.ContentType = "application/pdf";
Response.AppendHeader("Content-Disposition", "attachment;filename=abc.pdf");
Response.OutputStream.Write(ms.GetBuffer(), 0, ms.GetBuffer().Length);
Response.OutputStream.Flush();
Response.OutputStream.Close();
Response.End();
ms.Close();
}
//Working with Memory Stream and PDF
public void CreatePDFFromMemoryStream()
{
//(1)using PDFWriter
Document doc = new Document();
MemoryStream memoryStream = new MemoryStream();
PdfWriter writer = PdfWriter.GetInstance(doc, memoryStream);
doc.Open();
doc.Add(new Paragraph("Some Text"));
writer.CloseStream = false;
doc.Close();
//Get the pointer to the beginning of the stream.
memoryStream.Position = 0;
//You may use this PDF in memorystream to send as an attachment in an email
//OR download as a PDF
SendEmail(memoryStream);
DownloadAsPDF(memoryStream);
//(2)Another way using PdfStamper
PdfReader reader = new PdfReader(Server.MapPath(P_InputStream2));
using (MemoryStream ms = new MemoryStream())
{
PdfStamper stamper = new PdfStamper(reader, ms);
AcroFields fields = stamper.AcroFields;
fields.SetField("SomeField", "MyValueFromDB");
stamper.FormFlattening = true;
stamper.Close();
SendEmail(ms);
}
}
//Burst-- Make each page of an existing multi-page PDF document
//as another brand new PDF document
private void PDFBurst()
{
string pdfTemplatePath = Server.MapPath(P_InputStream3);
PdfReader reader = new PdfReader(pdfTemplatePath);
//PdfCopy copy;
PdfSmartCopy copy;
for (int i = 1; i < reader.NumberOfPages; i++)
{
Document d1 = new Document();
copy = new PdfSmartCopy(d1, new FileStream(Server.MapPath(P_OutputStream).Replace(".pdf", i.ToString() + ".pdf"), FileMode.Create));
d1.Open();
copy.AddPage(copy.GetImportedPage(reader, i));
d1.Close();
}
}
//Copy a set of form fields from an existing PDF template/doc
//and keep appending to a brand new PDF file.
//The copied set of fields will have different values.
private void AppendSetOfFormFields()
{
PdfCopyFields _copy = new PdfCopyFields(new FileStream(Server.MapPath(P_OutputStream), FileMode.Create));
_copy.AddDocument(new PdfReader(a1("1")));
_copy.AddDocument(new PdfReader(a1("2")));
_copy.AddDocument(new PdfReader(new FileStream(Server.MapPath("~/MyPDFTemplates/Myaspx.pdf"), FileMode.Open)));
_copy.Close();
}
//ConcatenateForms
private byte[] a1(string _ToAppend)
{
using (var existingFileStream = new FileStream(Server.MapPath(P_InputStream), FileMode.Open))
using (MemoryStream stream = new MemoryStream())
{
// Open existing PDF
var pdfReader = new PdfReader(existingFileStream);
var stamper = new PdfStamper(pdfReader, stream);
var form = stamper.AcroFields;
var fieldKeys = form.Fields.Keys;
foreach (string fieldKey in fieldKeys)
{
form.RenameField(fieldKey, fieldKey + _ToAppend);
}
// "Flatten" the form so it wont be editable/usable anymore
stamper.FormFlattening = true;
stamper.Close();
pdfReader.Close();
return stream.ToArray();
}
}
//Working with Image
private void AddAnImage()
{
using (var inputPdfStream = new FileStream(#"C:\MyInput.pdf", FileMode.Open))
using (var inputImageStream = new FileStream(#"C:\img1.jpg", FileMode.Open))
using (var outputPdfStream = new FileStream(#"C:\MyOutput.pdf", FileMode.Create))
{
PdfReader reader = new PdfReader(inputPdfStream);
PdfStamper stamper = new PdfStamper(reader, outputPdfStream);
PdfContentByte pdfContentByte = stamper.GetOverContent(1);
var image = iTextSharp.text.Image.GetInstance(inputImageStream);
image.SetAbsolutePosition(1, 1);
pdfContentByte.AddImage(image);
stamper.Close();
}
}
//Add Company Letter-Head/Stationary to an existing pdf
private void AddCompanyStationary()
{
PdfReader reader = new PdfReader(Server.MapPath(P_InputStream2));
PdfReader s_reader = new PdfReader(Server.MapPath(P_InputStream4));
using (PdfStamper stamper = new PdfStamper(reader, new FileStream(Server.MapPath(P_OutputStream), FileMode.Create)))
{
PdfImportedPage page = stamper.GetImportedPage(s_reader, 1);
int n = reader.NumberOfPages;
PdfContentByte background;
for (int i = 1; i <= n; i++)
{
background = stamper.GetUnderContent(i);
background.AddTemplate(page, 0, 0);
}
stamper.Close();
}
}
Try this example:
using iTextSharp.text;
// Set up the fonts to be used on the pages
private Font _largeFont = new Font(Font.FontFamily.HELVETICA, 18, Font.BOLD, BaseColor.BLACK);
private Font _standardFont = new Font(Font.FontFamily.HELVETICA, 14, Font.NORMAL, BaseColor.BLACK);
private Font _smallFont = new Font(Font.FontFamily.HELVETICA, 10, Font.NORMAL, BaseColor.BLACK);
public void Build()
{
iTextSharp.text.Document doc = null;
try
{
// Initialize the PDF document
doc = new Document();
iTextSharp.text.pdf.PdfWriter writer = iTextSharp.text.pdf.PdfWriter.GetInstance(doc,
new System.IO.FileStream(System.IO.Directory.GetCurrentDirectory() + "\\ScienceReport.pdf",
System.IO.FileMode.Create));
// Set margins and page size for the document
doc.SetMargins(50, 50, 50, 50);
// There are a huge number of possible page sizes, including such sizes as
// EXECUTIVE, LEGAL, LETTER_LANDSCAPE, and NOTE
doc.SetPageSize(new iTextSharp.text.Rectangle(iTextSharp.text.PageSize.LETTER.Width,
iTextSharp.text.PageSize.LETTER.Height));
// Add metadata to the document. This information is visible when viewing the
// document properities within Adobe Reader.
doc.AddTitle("My Science Report");
doc.AddCreator("M. Lichtenberg");
doc.AddKeywords("paper airplanes");
// Add Xmp metadata to the document.
this.CreateXmpMetadata(writer);
// Open the document for writing content
doc.Open();
// Add pages to the document
this.AddPageWithBasicFormatting(doc);
this.AddPageWithInternalLinks(doc);
this.AddPageWithBulletList(doc);
this.AddPageWithExternalLinks(doc);
this.AddPageWithImage(doc, System.IO.Directory.GetCurrentDirectory() + "\\FinalGraph.jpg");
// Add page labels to the document
iTextSharp.text.pdf.PdfPageLabels pdfPageLabels = new iTextSharp.text.pdf.PdfPageLabels();
pdfPageLabels.AddPageLabel(1, iTextSharp.text.pdf.PdfPageLabels.EMPTY, "Basic Formatting");
pdfPageLabels.AddPageLabel(2, iTextSharp.text.pdf.PdfPageLabels.EMPTY, "Internal Links");
pdfPageLabels.AddPageLabel(3, iTextSharp.text.pdf.PdfPageLabels.EMPTY, "Bullet List");
pdfPageLabels.AddPageLabel(4, iTextSharp.text.pdf.PdfPageLabels.EMPTY, "External Links");
pdfPageLabels.AddPageLabel(5, iTextSharp.text.pdf.PdfPageLabels.EMPTY, "Image");
writer.PageLabels = pdfPageLabels;
}
catch (iTextSharp.text.DocumentException dex)
{
// Handle iTextSharp errors
}
finally
{
// Clean up
doc.Close();
doc = null;
}
}
You can always just create an html page and then convert that to pdf using wkhtmltopdf. This has the benefit of you not having to construct the pdf with a library such as iText. You just make a text file (html) and then pass it to the wkhtmltopdf executable.
See Calling wkhtmltopdf to generate PDF from HTML for more info.
I have used iText for some various utility, such us merge and editing of pdf files with success. Now I need to overlap 2 pdf pages:
For Instance:
INPUT:
PDF#1 (1 Page)
PDF#2 (1 Page)
OUTPUT:
PDF#3 (1 Page: This is the result of the 2 Input Pages Overlapped)
I don't know if it's possible to do this with iText latest version. I am also considering to use one of the 2 input PDF Files as background for the PDF Output Files.
Thank you in advance.
It's actually pretty easy to do. The PdfWriter object has an instance method called GetImportedPage() which returns a PdfImportedPage object. This object can be passed to a PdfContentByte's AddTemplate() method.
GetImportedPage() takes a PdfReader object and the page number that you want to get. You can get a PdfContentByte from an instance of a PdfWriter's DirectContent property.
The code below is a full working C# 2010 WinForms app targeting iTextSharp 5.1.2.0 that shows this all off. It first creates two files on the desktop, the first with just a solid red background color and the second with just a paragraph. It then combines those two files overlapping into a third document. See the code for additional comments.
using System;
using System.IO;
using System.Windows.Forms;
using iTextSharp.text;
using iTextSharp.text.pdf;
namespace WindowsFormsApplication1 {
public partial class Form1 : Form {
public Form1() {
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e) {
//Folder that we'll work from
string workingFolder = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
string pdf1 = Path.Combine(workingFolder, "pdf1.pdf");//PDF with solid red background color
string pdf2 = Path.Combine(workingFolder, "pdf2.pdf");//PDF with text
string pdf3 = Path.Combine(workingFolder, "pdf3.pdf");//Merged PDF
//Create a basic PDF filled with red, nothing special
using (FileStream fs = new FileStream(pdf1, FileMode.Create, FileAccess.Write, FileShare.None)) {
using (Document doc = new Document(PageSize.LETTER)) {
using (PdfWriter writer = PdfWriter.GetInstance(doc, fs)) {
doc.Open();
PdfContentByte cb = writer.DirectContent;
cb.SetColorFill(BaseColor.RED);
cb.Rectangle(0, 0, doc.PageSize.Width, doc.PageSize.Height);
cb.Fill();
doc.Close();
}
}
}
//Create a basic PDF with a single line of text, nothing special
using (FileStream fs = new FileStream(pdf2, FileMode.Create, FileAccess.Write, FileShare.None)) {
using (Document doc = new Document(PageSize.LETTER)) {
using (PdfWriter writer = PdfWriter.GetInstance(doc, fs)) {
doc.Open();
doc.Add(new Paragraph("This is a test"));
doc.Close();
}
}
}
//Create a basic PDF
using (FileStream fs = new FileStream(pdf3, FileMode.Create, FileAccess.Write, FileShare.None)) {
using (Document doc = new Document(PageSize.LETTER)) {
using (PdfWriter writer = PdfWriter.GetInstance(doc, fs)) {
doc.Open();
//Get page 1 of the first file
PdfImportedPage imp1 = writer.GetImportedPage(new PdfReader(pdf1), 1);
//Get page 2 of the second file
PdfImportedPage imp2 = writer.GetImportedPage(new PdfReader(pdf2), 1);
//Add the first file to coordinates 0,0
writer.DirectContent.AddTemplate(imp1, 0, 0);
//Since we don't call NewPage the next call will operate on the same page
writer.DirectContent.AddTemplate(imp2, 0, 0);
doc.Close();
}
}
}
this.Close();
}
}
}