I want to compress output PDF. The code below output was so biger than original file. Can I use compress option?
PDDocument doc = new PDDocument();
InputStream in = new FileInputStream(f);
BufferedImage bimg = ImageIO.read(in);
PDPage page = new PDPage(PDRectangle.A4);
doc.addPage(page);
PDImageXObject pdImageXObject = JPEGFactory.createFromImage(doc, bimg, 0.03f);
PDPageContentStream contentStream = new PDPageContentStream(doc, page, AppendMode.APPEND, true);
contentStream.close();
doc.save(outfile);
doc.close();
Related
I have a byte[] and I want to write byte[] to PDF document. I have seen Paragraph, ShowText methods to print text but I don't know how to pass byte[]. In the below code, I want to write fileBytes to PDF. How to do that?
BaseFont f_cb = BaseFont.CreateFont("c:\\windows\\fonts\\calibrib.ttf", BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
BaseFont f_cn = BaseFont.CreateFont("c:\\windows\\fonts\\calibri.ttf", BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
byte[] fileBytes = File.ReadAllBytes(#"D:\196836f7-9cf5-4044-b11e-2e3d06888c43.pdf");
using (FileStream fs = new FileStream(#"D:\result_196836f7-9cf5-4044-b11e-2e3d06888c43.pdf", FileMode.Create))
{
Document document = new Document(PageSize.LETTER, 25, 25, 30, 30);
PdfWriter writer = PdfWriter.GetInstance(document, fs);
// Add meta information to the document
document.AddAuthor("John");
document.AddCreator("itestSharp demo");
document.AddKeywords("ItextSharp tutorial");
document.AddSubject("Steps to write byte[] to PDF using c#");
document.AddTitle("Steps to write byte[] to PDF using c#");
document.Open();
PdfContentByte cb = writer.DirectContent;
cb.SetFontAndSize(f_cb, 16);
cb.BeginText();
cb.SetTextMatrix(25, 400);
cb.ShowText("Hello World");
cb.EndText();
document.Close();
writer.Close();
fs.Close();
}
How to add html checkbox,radiobutton,textbox in pdf using itextstarp.Am using this code.
StringWriter stringWriter = new StringWriter();
MemoryStream stream = new System.IO.MemoryStream();
var viewData = ViewData;
ViewEngineResult viewEngineResult = ViewEngines.Engines.FindView(ControllerContext, "ABCDFORM", null);
ViewContext viewContext = new ViewContext(ControllerContext, viewEngineResult.View, viewData, new TempDataDictionary(), stringWriter);
viewEngineResult.View.Render(viewContext, stringWriter);
// Get the view HTML string
string htmlToConvert = stringWriter.ToString();
StringReader sr = new StringReader(htmlToConvert);
Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 0f, 0f);
PdfWriter writer = PdfWriter.GetInstance(pdfDoc, stream);
pdfDoc.Open();
XMLWorkerHelper.GetInstance().ParseXHtml(writer, pdfDoc, sr);
pdfDoc.Close();
string fileName = DateTime.Now.ToString("MM/dd/yyyy hh:mm:ss");
return File(stream.ToArray(), "application/pdf", string.Format("{0}.pdf", fileName));
In ABCDFORM is a my view,I am working on MVC.and
am create ABCDFORM as html file.
I need add html checkbox,radiobutton in pdf
I'm using iText to generate a pdf with textfields populated with data, from an ASP.NET web form. For some reason, when the pdf is generated, the textfields show Empty, but when I put the cursor on the field, the text shows. If I click somewhere else, then the text in the textfield disappears again. This is the code, adding a textfield called "Field_0_0". The text "hello1" is set to the textfield, but it doesn't display until clicking the textbox. The only way to get the text in the textfield is by typing something, and then the text stays there after losing focus.
byte[] templatebytes = null;
//Dim doc As New Document(iTextSharp.text.PageSize.LETTER, 10, 10, 42, 35)
Document doc = new Document(iTextSharp.text.PageSize.LETTER);
MemoryStream stream = new MemoryStream();
PdfWriter writer = PdfWriter.GetInstance(doc, stream);
doc.Open();
Paragraph para = new Paragraph("This is my first paragraph");
Phrase pharse = new Phrase("This is my first phrase");
Chunk chunk_ = new Chunk("This is my first chunk");
doc.Add(para);
doc.Add(pharse);
doc.Add(chunk_);
doc.Close();
templatebytes = stream.ToArray();
//==============================================================================================================================================
Stream stream2 = new MemoryStream(templatebytes);
byte[] finalbytes = null;
using (MemoryStream outputPdfStream = new MemoryStream())
{
iTextSharp.text.pdf.PdfReader pdfReader = new iTextSharp.text.pdf.PdfReader(stream2);
iTextSharp.text.pdf.PdfStamper pdfStamper = new iTextSharp.text.pdf.PdfStamper(pdfReader, outputPdfStream);
TextField tf1 = new TextField(writer, new iTextSharp.text.Rectangle(20, 20, 200, 100), "Field_0_0");
tf1.DefaultText = " ";
tf1.Options = TextField.MULTILINE | TextField.VISIBLE;
tf1.TextColor = BaseColor.BLACK;
tf1.FontSize = 10;
tf1.BorderWidth = 1;
tf1.BorderColor = BaseColor.BLUE;
pdfStamper.AddAnnotation(tf1.GetTextField(), 1);
pdfStamper.Close();
finalbytes = outputPdfStream.ToArray();
}
//====================================== set data ========================================
Stream stream3 = new MemoryStream(finalbytes);
byte[] finalbytes3 = null;
using (MemoryStream outputPdfStream = new MemoryStream())
{
iTextSharp.text.pdf.PdfReader pdfReader = new iTextSharp.text.pdf.PdfReader(stream3);
iTextSharp.text.pdf.PdfStamper pdfStamper = new iTextSharp.text.pdf.PdfStamper(pdfReader, outputPdfStream);
//Set fields with data
iTextSharp.text.pdf.AcroFields form = pdfStamper.AcroFields;
IDictionary<string, iTextSharp.text.pdf.AcroFields.Item> fields = form.Fields;
string value = "Hello1"; //$"Line1{Environment.NewLine}Line2";
form.SetField("Field_0_0", value); //$"Line1{Environment.NewLine}Line2"
pdfStamper.Close();
finalbytes3 = outputPdfStream.ToArray();
}
Response.Clear();
Response.AddHeader("Content-Disposition", "attachment; filename=GeneratedPDF.pdf");
Response.AddHeader("Content-Length", finalbytes3.Length.ToString());
Response.BinaryWrite(finalbytes3);
Response.End();
Hopefully I explained this right. I can't find a solution online to solve this problem.
Thanks
Set property of pdfStamper follow this:
pdfStamper.AcroFields.GenerateAppearances = false;
I'm using iText 5 to fill existing pdf forms with content and then merge them into a single pdf. I also want to turn on/off layers, but after merging all layers are visible.
This code shows the problem without using existing pdf forms. I would like to hide layer two but it seems not working.
static void Main(string[] args)
{
byte[] pdfPage = CreatePage();
byte[] result = Merge(new byte[][] { pdfPage, pdfPage });
File.WriteAllBytes(#"c:\test1.pdf", result);
}
private static byte[] CreatePage()
{
Document doc = new Document();
MemoryStream ms = new MemoryStream();
PdfWriter writer = PdfWriter.GetInstance(doc, ms);
doc.Open();
PdfLayer layer1 = new PdfLayer("Layer 1", writer);
PdfLayer layer2 = new PdfLayer("Layer 2", writer);
PdfContentByte cb = writer.DirectContent;
cb.BeginLayer(layer1);
ColumnText.ShowTextAligned(cb, Element.ALIGN_LEFT, new Phrase("Layertext 1"), 100, 700, 0);
cb.EndLayer();
cb.BeginLayer(layer2);
ColumnText.ShowTextAligned(cb, Element.ALIGN_LEFT, new Phrase("Layertext 2"), 100, 600, 0);
cb.EndLayer();
layer1.On = true;
// turn off layer 2
layer2.On = false;
doc.Close();
return ms.ToArray();
}
private static byte[] Merge(byte[][] pages)
{
Document doc = new Document();
MemoryStream ms = null;
using (ms = new MemoryStream())
{
PdfCopy copy = new PdfCopy(doc, ms);
doc.Open();
foreach (byte[] page in pages)
{
PdfReader reader = new PdfReader(new MemoryStream(page));
PdfImportedPage imp = copy.GetImportedPage(reader, 1);
copy.AddPage(imp);
reader.Close();
}
doc.Close();
}
return ms.ToArray();
}
I'd like to put an image into a digitally signed PDF. if I do it using the usual way, the signature is broken. But with Acrobat it's possible to add an annotation stamp to a signed PDF and the signature is not broken.
Googgling I've found an example of how to do that:
http://itext.2136553.n4.nabble.com/Digital-Signature-Corrupted-after-adding-watermark-image-td4657457.html
I've translate it to c# but without success:
using (Stream inputPdfStream = new FileStream("test.pdf", FileMode.Open, FileAccess.Read, FileShare.Read))
using (Stream inputImageStream = new FileStream("grafo.jpg", FileMode.Open, FileAccess.Read, FileShare.Read))
using (Stream outputPdfStream = new FileStream("result.pdf", FileMode.Create, FileAccess.Write, FileShare.None))
{
var reader = new PdfReader(inputPdfStream);
var stamper = new PdfStamper(reader, outputPdfStream);
iTextSharp.text.Image image = iTextSharp.text.Image.GetInstance(inputImageStream);
image.SetAbsolutePosition(0, 0);
PdfTemplate template = PdfTemplate.CreateTemplate(stamper.Writer, image.Width, image.Height);
template.AddImage(image);
iTextSharp.text.Rectangle rect = new iTextSharp.text.Rectangle(350, 250, 350 + image.Width, 250 + image.Height);
PdfAnnotation annotation = PdfAnnotation.CreateStamp(stamper.Writer, rect, null, Guid.NewGuid().ToString());
annotation.SetAppearance(PdfName.N, template);
stamper.AddAnnotation(annotation, 1);
stamper.Close();
}
When I open the PDF with Acrobat, signature is broken.
Some idea of how to do that with iText?
Thank's
The PdfStamper must be created in append mode.
var stamper = new PdfStamper(reader, outputPdfStream, '\0', true);