Trying to manipulate pdf with using pdfstamper I don't know what's wrong in the code it doesn't print textfield in output file. Thanks in advance
PdfReader reader = new PdfReader("Players.pdf");
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(Result));
AcroFields form = stamper.getAcroFields(); // using acro fields to fill out the pdf
form.setGenerateAppearances(true);
rs = statement.executeQuery("SELECT * from Players");
while ( rs.next() ) {
String Country = null;
Country = rs.getString("CName");
System.out.println(Country);
if (rs != null)
Country = rs.getString("CName");
form.setField("Country",Country);
}
stamper.setFormFlattening(true);
stamper.close();
connection.close();
Related
I have the following Java program to create an iText PDF:
//Create the PDF file
public int CreatePDF(String[] pSrc,
String pDest)
throws IOException
{
//Initialize
ConverterProperties vProperties = new ConverterProperties();
//Adding the fonts
FontProvider vfontProvider = new DefaultFontProvider(false, false, false);
for (String font : FONTS)
{
FontProgram vfontProgram = FontProgramFactory.createFont(font);
vfontProvider.addFont(vfontProgram);
}
vProperties.setFontProvider(vfontProvider);
PdfWriter vWriter = new PdfWriter(pDest, new WriterProperties().setCompressionLevel(9));
PdfDocument vPDF = new PdfDocument(vWriter);
PdfMerger vMerger = new PdfMerger(vPDF);
//Convert to PDF
for (String vHTML : pSrc)
{
ByteArrayOutputStream vArrByteAOS = new ByteArrayOutputStream();
PdfDocument vDoc = new PdfDocument(new PdfWriter(vArrByteAOS, new WriterProperties().setCompressionLevel(9)));
vDoc.setDefaultPageSize(new PageSize(735, 1080));
HtmlConverter.convertToPdf(vHTML, vDoc, vProperties);
vDoc = new PdfDocument(new PdfReader(new ByteArrayInputStream(vArrByteAOS.toByteArray())));
vMerger.merge(vDoc, 1, vDoc.getNumberOfPages());
vDoc.close();
}
vPDF.close();
return 0;
}
How can I set the Page Height (now hardcoded to 1080) based on the size of the HTML content (pSrc) in order to ensure that it fits to one page.
I have this code to create TextFields
public void MssCreateTextField(byte[] ssPdf, RCRectangleRecord ssRectangle, string ssName, int ssFontSize, string ssValue, int ssPage, out byte[] ssPdfOut, bool ssIsMultiline) {
PdfReader reader = new PdfReader(ssPdf);
ssPdfOut = null;
var output = new MemoryStream();
var stamper = new PdfStamper(reader, output);
/*TextField tField = new TextField(stamper.Writer, new iTextSharp.text.Rectangle((float)ssRectangle.ssSTRectangle.ssllx, (float)ssRectangle.ssSTRectangle.sslly, (float)ssRectangle.ssSTRectangle.ssurx, (float)ssRectangle.ssSTRectangle.ssury), ssName);
if (ssValue!="")
tField.Text = ssValue;
if (ssIsMultiline)
tField.Options = TextField.MULTILINE;
tField.FontSize = ssFontSize;*/
PdfFormField tField = PdfFormField.CreateTextField(stamper.Writer, ssIsMultiline, false, 50);
tField.FieldName = ssName;
tField.SetWidget(new iTextSharp.text.Rectangle((float)ssRectangle.ssSTRectangle.ssllx, (float)ssRectangle.ssSTRectangle.sslly, (float)ssRectangle.ssSTRectangle.ssurx, (float)ssRectangle.ssSTRectangle.ssury), PdfAnnotation.HIGHLIGHT_TOGGLE);
stamper.FormFlattening = false;
stamper.AddAnnotation(tField, ssPage);
stamper.Close();
reader.Close();
ssPdfOut = output.ToArray();
}
As you can see i have some code commented as an alternative but the two different ways are producing the same result.
What i am trying to achieve is create two textfields with the same name to when editing one it edits the others two. This two codes do that (in the browsers and pdfescape site) excepting in the adobe acrobat reader. In the acrobat reader i get just the first field visible and the others hidden i dont know why...
If you want to add two text field visualizations which represent the same content, you have to add them as two widgets of the same field and not two distinct fields, e.g. like this:
public void CreateDoubleTextField(byte[] ssPdf, Rectangle ssRectangle1, Rectangle ssRectangle2, string ssName, int ssFontSize, string ssValue, int ssPage, out byte[] ssPdfOut, bool ssIsMultiline)
{
PdfReader reader = new PdfReader(ssPdf);
ssPdfOut = null;
var output = new MemoryStream();
var stamper = new PdfStamper(reader, output);
PdfFormField tField = PdfFormField.CreateTextField(stamper.Writer, ssIsMultiline, false, 50);
tField.FieldName = ssName;
PdfFormField widget1 = PdfFormField.CreateEmpty(stamper.Writer);
widget1.SetWidget(ssRectangle1, PdfAnnotation.HIGHLIGHT_TOGGLE);
PdfFormField widget2 = PdfFormField.CreateEmpty(stamper.Writer);
widget2.SetWidget(ssRectangle2, PdfAnnotation.HIGHLIGHT_TOGGLE);
tField.AddKid(widget1);
tField.AddKid(widget2);
stamper.FormFlattening = false;
stamper.AddAnnotation(tField, ssPage);
stamper.Close();
reader.Close();
ssPdfOut = output.ToArray();
}
(As I don't have that RCRectangleRecord, I use the iTextSharp Rectangle class as argument.)
This gives you two field visualizations in Adobe Acrobat Reader; after editing one of them and switching focus (e.g. clicking somewhere outside that visualization), the other visualization duplicates the content.
Now i have this and i can create two fields when the list has more than one Rectangle but for some reason i dont know how the two fields appears without the name!!
PdfReader reader = new PdfReader(ssPdf);
ssPdfOut = null;
var output = new MemoryStream();
var stamper = new PdfStamper(reader, output);
TextField tField;
if (ssRectangle.Count==1){
tField= new TextField(stamper.Writer, new iTextSharp.text.Rectangle((float)ssRectangle[0].ssSTRectangle.ssllx, (float)ssRectangle[0].ssSTRectangle.sslly, (float)ssRectangle[0].ssSTRectangle.ssurx, (float)ssRectangle[0].ssSTRectangle.ssury), ssName);
if (ssValue!="")
tField.Text = ssValue;
if (ssIsMultiline)
tField.Options = TextField.MULTILINE;
tField.FontSize = ssFontSize;
tField.FieldName = ssName;
stamper.AddAnnotation(tField.GetTextField(), ssPage);
}
else
{
PdfFormField PtField = PdfFormField.CreateTextField(stamper.Writer, ssIsMultiline, false, 250);
PtField.Name=ssName;
foreach (RCRectangleRecord item in ssRectangle)
{
/*
tField=new TextField(stamper.Writer, new iTextSharp.text.Rectangle((float)ssRectangle[0].ssSTRectangle.ssllx, (float)ssRectangle[0].ssSTRectangle.sslly, (float)ssRectangle[0].ssSTRectangle.ssurx, (float)ssRectangle[0].ssSTRectangle.ssury), ssName);
tField.FieldName = ssName;
PtField.AddKid(tField.GetTextField());*/
PdfFormField widget = PdfFormField.CreateEmpty(stamper.Writer);
widget.SetWidget(new Rectangle((float)item.ssSTRectangle.ssllx, (float)item.ssSTRectangle.sslly, (float)item.ssSTRectangle.ssurx, (float)item.ssSTRectangle.ssury), PdfAnnotation.HIGHLIGHT_TOGGLE);
widget.Name = ssName;
PtField.AddKid(widget);
}
stamper.AddAnnotation(PtField, ssPage);
}
stamper.FormFlattening = false;
stamper.Close();
reader.Close();
ssPdfOut = output.ToArray();
The code below is correctly assigning the value "foo" to the named field, but the field is not being "flattened". I must be neglecting a step, but I don't know what it is. Please advise. Thanks.
public byte[] FlattenSpecifiedFormFields(byte[] b, List<string> fieldNames2Flatten)
{
PdfReader reader = new PdfReader(b);
using (var ms = new MemoryStream())
{
var stamper = new iTextSharp.text.pdf.PdfStamper(reader, ms);
foreach (string name in fieldNames2Flatten)
{
stamper.AcroFields.SetField(name, "foo");
stamper.PartialFormFlattening(name);
}
stamper.Close();
return ms.ToArray();
};
}
Even when partially flattening a form, the PdfStamper FormFlattening property must be set to true. I.e.:
var stamper = new PdfStamper(reader, ms);
stamper.FormFlattening = true;
foreach (string name in fieldNames2Flatten)
{
stamper.AcroFields.SetField(name, "foo");
stamper.PartialFormFlattening(name);
}
I am trying to download and merges multiple pdf files by using ITextSharp.
It used to working before but I being got an "Content can not be added to a PdfImportedPage." error message on the line:
importedPage = writer.GetImportedPage(reader, currentPageIndex);
The full code is below, any help will be very appreciated.
private string MergeDocuments(IList<string> fileUrls, string fileName)
{
var reportFolder = this.ReportFolder + "\\";
using (MemoryStream output = new MemoryStream())
{
Document document = new Document();
try
{
// Initialize pdf writer
PdfWriter writer = PdfWriter.GetInstance(document, output);
// Open document to write
document.Open();
PdfContentByte content = writer.DirectContent;
PdfImportedPage importedPage;
// Iterate through all pdf documents
foreach (var url in fileUrls)
{
// Create pdf reader
using (PdfReader reader = new PdfReader(new Uri(url)))
{
int numberOfPages = reader.NumberOfPages;
// Iterate through all pages
for (int currentPageIndex = 1; currentPageIndex <= numberOfPages; currentPageIndex++)
{
// Determine page size for the current page
document.SetPageSize( reader.GetPageSizeWithRotation(currentPageIndex) );
// Create page
document.NewPage();
importedPage = writer.GetImportedPage(reader, currentPageIndex);
content.AddTemplate(importedPage, 1f, 0, 0, 1f, 0, 0);
}
}
}
}
catch (Exception exception)
{
throw new Exception("Error occured", exception);
}
File.WriteAllBytes(reportFolder + fileName + ".pdf", output.GetBuffer());
}
return "Reports/" + fileName + ".pdf";
}
When I try the following code, I get a null pointer exception in the addDocument() method:
using (MemoryStream output = new MemoryStream()) {
Document document = new Document();
document.Open();
PdfCopy copy = new PdfSmartCopy(document, output);
foreach (var url in fileUrls) {
using (WebClient client = new WebClient()) {
var byteArray = client.DownloadData(url);
PdfReader reader = new PdfReader(byteArray);
copy.AddDocument(reader);
reader.Close();
}
}
}
I found the problem, the document object should be closed before writing memory stream to file.
Just added document.Close() as below.
document.Close();
File.WriteAllBytes(reportFolder + fileName + ".pdf", output.GetBuffer());
Have a little method which goes to the database and retrieves a pdf document from a varbinary column and then adds data to it. I would like to add code so that if this document (company stationery ) is not found then a new blank document is created and returned. The method could either return a Byte[] or a Stream.
Problem is that the variable "bytes" in the else clause is null.
Any ideas what's wrong?
private Byte[] GetBasePDF(Int32 AttachmentID)
{
Byte[] bytes = null;
DataTable dt = ServiceFactory
.GetService().Attachments_Get(AttachmentID, null, null);
if (dt != null && dt.Rows.Count > 0)
{
bytes = (Byte[])dt.Rows[0]["Data"];
}
else
{
// Create a new blank PDF document and return it as Byte[]
ITST.Document doc =
new ITST.Document(ITST.PageSize.A4, 50f, 50f, 25f, 25f);
MemoryStream ms = new MemoryStream();
PdfCopy copy = new PdfCopy(doc, ms);
ms.Position = 0;
bytes = ms.ToArray();
}
return bytes;
}
You are trying to use PdfCopy but that's intended for existing documents, not new ones. You just need to create a "blank" document using PdfWriter and Document. iText won't let you create a 100% empty document but the code below essentially does that by just adding a space.
private static Byte[] CreateEmptyDocument() {
using (var ms = new System.IO.MemoryStream()) {
using (var doc = new Document()) {
using (var writer = PdfWriter.GetInstance(doc, ms)) {
doc.Open();
doc.Add(new Paragraph(" "));
doc.Close();
}
}
return ms.ToArray();
}
}
I think you may need to use
bytes = ms.GetBuffer();
not
bytes = ms.ToArray();