The following code will generate a pdf that will not use the specified text expansions when read out loud. It seems that adding the image in a container is causing the problem.
void Main()
{
using(var ms = new MemoryStream())
{
var doc = new Document(PageSize.LETTER, 72, 72, 72, 72);
var writer = PdfWriter.GetInstance(doc, ms);
writer.SetTagged();
doc.Open();
var c1 = new Chunk("ABC");
c1.SetTextExpansion("the alphabet");
var p1 = new Paragraph();
p1.Add(c1);
doc.Add(p1);
// Adding this image to the document as img > chunk > doc causes the text expansion not to work.
// Adding this image to the document as img > doc works
var t = writer.DirectContent.CreateTemplate(6, 6);
t.SetLineWidth(1f);
t.Circle(3f, 3f, 1.5f);
t.SetGrayFill(0);
t.FillStroke();
var i = iTextSharp.text.Image.GetInstance(t);
var c2 = new Chunk(i, 0, 0);
doc.Add(c2);
var c3 = new Chunk("foobar");
c3.SetTextExpansion("foo bar");
var p3 = new Paragraph();
p3.Add(c3);
doc.Add(p3);
doc.Close();
ms.Flush();
File.WriteAllBytes("d:\\expansion.pdf", ms.ToArray());
}
}
Is this just me doing something wrong or a bug?
While this doesn't read out loud correctly in Adobe Reader, it does in JAWS. So it sounds like this is a reader issue and not necessarily an iText issue.
Related
I have created a pdf using itextsharp which contains some editable fields, when the service is called the pdf is created. But the problem what I am facing is, if i am changing anything in the pdf and downloading it then the changes are not saved. Also i want to open the pdf in a new tab through server side.
Code what I am using is:
public static String[] LANGUAGES_gc = { "English", "Math", "Science" };
[HttpGet]
[ODataRoute("GetPdf")]
public void DownloadPDF()
{
HttpContext.Current.Response.ContentType = "application/pdf";
HttpContext.Current.Response.AddHeader("content-disposition", "inline;filename=Example.pdf");
HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);
Document doc = new Document(iTextSharp.text.PageSize.A4, 10f, 10f, 100f, 0f);
string pdfFilePath = HttpContext.Current.Server.MapPath(".") + "/PDFFiles";
PdfWriter wri = PdfWriter.GetInstance(doc, HttpContext.Current.Response.OutputStream);
doc.Open();
doc.AddAuthor("Test author");
doc.AddCreationDate();
PdfContentByte cb = wri.DirectContent;
Font _bf = new Font(Font.FontFamily.HELVETICA, 6);
PdfFormField _radioGroup = PdfFormField.CreateRadioButton(wri, true);
_radioGroup.FieldName = "language_gc";
Rectangle _rect;
RadioCheckField _radioG;
PdfFormField _radioField1;
PdfFormField field;
for (int i = 0; i < LANGUAGES_gc.Length; i++)
{
_rect = new Rectangle(46, 806 - i * 40, 60, 788 - i * 40);
_radioG = new RadioCheckField(wri, _rect, null, LANGUAGES_gc[i]);
_radioG.BackgroundColor = new GrayColor(0.8f);
_radioG.BorderColor = GrayColor.BLACK;
_radioG.CheckType = RadioCheckField.TYPE_CIRCLE;
_radioField1 = _radioG.RadioField;
_radioGroup.AddKid(_radioField1);
ColumnText.ShowTextAligned(cb, Element.ALIGN_LEFT, new Phrase(LANGUAGES_gc[i], new Font(Font.FontFamily.HELVETICA, 18)), 70, 790 - i * 40, 0);
}
/* Button */
_rect = new Rectangle(300, 806, 370, 788);
PushbuttonField button = new PushbuttonField(wri, _rect, "Buttons");
button.BackgroundColor = new GrayColor(0.75f);
button.BorderColor = GrayColor.GRAYBLACK;
button.BorderWidth = 1;
button.BorderStyle = PdfBorderDictionary.STYLE_BEVELED;
button.TextColor = GrayColor.GRAYBLACK ;
button.FontSize = 12;
button.Text = "Submit";
//button.Layout = PushbuttonField.LAYOUT_ICON_LEFT_LABEL_RIGHT;
button.ScaleIcon = PushbuttonField.SCALE_ICON_ALWAYS;
button.ProportionalIcon = true;
button.IconHorizontalAdjustment = 0;
field = button.Field;
field.Action = PdfAction.JavaScript("this.showButtonState()", wri);
wri.AddAnnotation(field);
//}
//return ms.ToArray();
/*----------------------------------------------------*/
wri.AddAnnotation(_radioGroup);
wri.AddAnnotation(button.Field);
cb = wri.DirectContent;
doc.Close();
HttpContext.Current.Response.Write(doc);
HttpContext.Current.Response.End();
}
Can someone suggest me the solution??
Let's make an analogy here, with a simpler file-type. Suppose you're showing the user a textfile. They open it in their native .txt app (notepad) and make some changes.
Do you expect their changes to be communicated automatically back to your server?
Or that their changes are magically propagated? Of course not.
And even if it would, this seems like functionality notepad would have to provide, rather than something the creator of the file should do.
Now, as it so happens, there is a particular standard of pdf documents that exists for precisely your use-case. Essentially, the document sets up a connection to a server, and synchronizes. However, this standard is rather obscure, not a lot of viewers support it.
To the best of my knowledge, no pdf library (including iText) supports making documents like that.
I am trying to generate a pdf on button click. I am having challenge to design the page. If anybody can help on, how to position the text in particular position.
Say I want my address to in the top right corner and heading in the center.
Here is the code I am working on:
private void pdf_btn_Click(object sender, EventArgs e)
{
SaveFileDialog svg = new SaveFileDialog();
svg.ShowDialog();
using (FileStream stream = new FileStream(svg.FileName + ".pdf", FileMode.Create))
{
// Create a Document object
var document = new Document(PageSize.A4, 50, 50, 25, 25);
// Create a new PdfWrite object, writing the output to a MemoryStream
// var output = new MemoryStream();
var writer = PdfWriter.GetInstance(document, stream);
document.Open();
// First, create our fonts... (For more on working w/fonts in iTextSharp, see: http://www.mikesdotnetting.com/Article/81/iTextSharp-Working-with-Fonts
var titleFont = FontFactory.GetFont("Arial", 18, Convert.ToInt32(Font.Bold));
var AddressFont = FontFactory.GetFont("Arial", 7, Convert.ToInt32(Font.Bold));
var boldTableFont = FontFactory.GetFont("Arial", 12, Convert.ToInt32(Font.Bold));
var endingMessageFont = FontFactory.GetFont("Arial", 10, Convert.ToInt32(Font.Italic));
var bodyFont = FontFactory.GetFont("Arial", 12);
// Add the "" title
document.Add(new Paragraph("Certificate of Analysis", titleFont));
// Add Address
var text = document.Add(new Paragraph("Abc Company", AddressFont));
document.Add(new Paragraph("Tel:(xx) xxx-xxxx, (xxx) xxx-xxx", AddressFont));
document.Add(new Paragraph("Fax: (xxx) xxx-xxx, , AddressFont));
document.Close();
stream.Close();
}
}
There are different ways to achieve what you want.
Currently, you are telling iText to do the layout. If you want to center the text "Certificate of Analysis", then you could change the alignment of the Paragraph like this:
Paragraph header = new Paragraph("Certificate of Analysis", titleFont);
header.Alignment = Element.ALIGN_CENTER;
document.Add(header);
If you want the text "Abc Company" to be right-aligned, you can change he alignment like this:
Paragraph company = new Paragraph("Abc Company", AddressFont);
company.Alignment = Element.ALIGN_RIGHT;
document.Add(company);
Of course: when we add company, it will start on a new line under header. Maybe you want the text to be on the same line.
In that case, why not use a PdfPTable?
PdfPTable myTable = new PdfPTable(3);
myTable.WidthPercentage = 100;
PdfPCell mydate = new PdfPCell(new Phrase("April 22, 2015", myfont));
mydate.Border = Rectangle.NO_BORDER;
myTable.AddCell(mydate);
PdfPCell header = new PdfPCell(new Phrase("Certificate of Analysis", titleFont));
header.Border = Rectangle.NO_BORDER;
header.HorizontalAlignment = Element.ALIGN_CENTER;
myTable.AddCell(header);
PdfPCell address = new PdfPCell(new Phrase("Company Address", AddressFont));
address.Border = Rectangle.NO_BORDER;
address.HorizontalAlignment = Element.ALIGN_RIGHT;
myTable.AddCell(address);
doc.Add(myTable);
Now the available width of your page will be divided in three, the date will be aligned to the left, the header will be centered, and the address will be aligned to the right. Obviously, you can add more data to a PdfPCell and more rows to the PdfPTable. This is just a simple proof of concept.
Another option, is to add the text at an absolute position (using coordinates). This can be done by using the ColumnText object. There are plenty of examples on this in The Best iText Questions on StackOverflow
I am using the iText library to generate text. I am loading the Arial Unicode MS font which does not contain a bold style so iText is simulating the bold. This works fine, but the weight of the bold font appears too heavy compared with text generated using the Java API or even using Microsoft Word.
I tried to get the weight from the FontDescriptor, but the value returned is always 0.0
float weight = font.getBaseFont().getFontDescriptor(BaseFont.FONT_WEIGHT, fontSize);
Is there a way I can change the weight of a simulated bold font?
As an addendum to #Chris' answer: You do not need to construct those Object[]s as there is a Chunk convenience method:
BaseFont arialUnicodeMs = BaseFont.createFont("c:\\Windows\\Fonts\\ARIALUNI.TTF", BaseFont.WINANSI, BaseFont.EMBEDDED);
Font arial12 = new Font(arialUnicodeMs, 12);
Paragraph p = new Paragraph();
for (int i = 1; i < 100; i++)
{
Chunk chunk = new Chunk(String.valueOf(i) + " ", arial12);
chunk.setTextRenderMode(PdfContentByte.TEXT_RENDER_MODE_FILL_STROKE, i/100f, null);
p.add(chunk);
}
document.add(p);
results in
EDIT
Sorry, I just realized after posting this that you're using iText but my answer is for iTextSharp. You should, however, be able to use most of the code below. I've updated the source code link to reference the appropriate Java source.
Bold simulation (faux bold) is done by drawing the text with a stroke. When iText is asked to draw bold text with a non-bold font it defaults to applying a stroke with a width of of the font's size divided by 30. You can see this in the current source code here. The magic part is setting the chunk's text rendering mode to a stroke of your choice:
//.Net code
myChunk.Attributes[Chunk.TEXTRENDERMODE] = new Object[] { PdfContentByte.TEXT_RENDER_MODE_FILL_STROKE, MAGIC_NUMBER_HERE, null };
//Java code
myChunk.attributes.put(Chunk.TEXTRENDERMODE, new Object[]{Integer.valueOf(PdfContentByte.TEXT_RENDER_MODE_FILL_STROKE), MAGIC_NUMBER_HERE, null});
Knowing that you can just apply the same logic but using your weight preference. The sample below creates four chunks, the first normal, the second faux-bold, the third ultra-heavy faux-bold and the fourth ultra-lite faux-bold.
//.Net code below but should be fairly easy to convert to Java
//Path to our PDF
var testFile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "test.pdf");
//Path to our font
var ff = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Fonts), "ARIALUNI.TTF");
//Normal document setup, nothing special here
using (var fs = new FileStream(testFile, FileMode.Create, FileAccess.Write, FileShare.None)) {
using (var doc = new Document()) {
using (var writer = PdfWriter.GetInstance(doc, fs)) {
doc.Open();
//Register our font
FontFactory.Register(ff, "Arial Unicode MS");
//Declare a size to use throughout the demo
var size = 20;
//Get a normal and a faux-bold version of the font
var f = FontFactory.GetFont("Arial Unicode MS", BaseFont.IDENTITY_H, BaseFont.EMBEDDED, size, iTextSharp.text.Font.NORMAL);
var fb = FontFactory.GetFont("Arial Unicode MS", BaseFont.IDENTITY_H, BaseFont.EMBEDDED, size, iTextSharp.text.Font.BOLD);
//Create a normal chunk
var cNormal = new Chunk("Hello ", f);
//Create a faux-bold chunk
var cFauxBold = new Chunk("Hello ", fb);
//Create an ultra heavy faux-bold
var cHeavy = new Chunk("Hello ", f);
cHeavy.Attributes = new Dictionary<string, object>();
cHeavy.Attributes[Chunk.TEXTRENDERMODE] = new Object[] { PdfContentByte.TEXT_RENDER_MODE_FILL_STROKE, size / 10f, null };
//Create a lite faux-bold
var cLite = new Chunk("Hello ", f);
cLite.Attributes = new Dictionary<string, object>();
cLite.Attributes[Chunk.TEXTRENDERMODE] = new Object[] { PdfContentByte.TEXT_RENDER_MODE_FILL_STROKE, size / 50f, null };
//Add to document
var p = new Paragraph();
p.Add(cNormal);
p.Add(cFauxBold);
p.Add(cHeavy);
p.Add(cLite);
doc.Add(p);
doc.Close();
}
}
}
I am trying to add header/footer to a PDF whose content is otherwise generated by XMLWorkerHelper. Not sure if it's a placement issue but I can't see the header/footer.
This is in an ASP.NET MVC app using iTextSharp and XmlWorker packages ver 5.4.4 from Nuget.
Code to generate PDF is as follows:
private byte[] ParseXmlToPdf(string html)
{
XhtmlToListHelper xhtmlHelper = new XhtmlToListHelper();
Document document = new Document(PageSize.A4, 30, 30, 90, 90);
MemoryStream msOutput = new MemoryStream();
PdfWriter writer = PdfWriter.GetInstance(document, msOutput);
writer.PageEvent = new TextSharpPageEventHelper();
document.Open();
var htmlContext = new HtmlPipelineContext(null);
htmlContext.SetTagFactory(Tags.GetHtmlTagProcessorFactory());
var cssResolver = XMLWorkerHelper.GetInstance().GetDefaultCssResolver(false);
cssResolver.AddCssFile(HttpContext.Server.MapPath("~/Content/themes/mytheme.css"), true);
var pipeline = new CssResolverPipeline(cssResolver, new HtmlPipeline(htmlContext, new PdfWriterPipeline(document, writer)));
var worker = new XMLWorker(pipeline, true);
var parser = new XMLParser();
parser.AddListener(worker);
using (TextReader sr = new StringReader(html))
{
parser.Parse(sr);
}
//string text = "Some Random Text";
//for (int k = 0; k < 8; ++k)
//{
// text += " " + text;
// Paragraph p = new Paragraph(text);
// p.SpacingBefore = 8f;
// document.Add(p);
//}
worker.Close();
document.Close();
return msOutput.ToArray();
}
Now instead of using these three lines
using (TextReader sr = new StringReader(html))
{
parser.Parse(sr);
}
if I comment them out and uncomment the code to add a random Paragraph of text (commented in above sample), I see the header/footer along with the random text.
What am I doing wrong?
The EventHandler is as follows:
public class TextSharpPageEventHelper : PdfPageEventHelper
{
public Image ImageHeader { get; set; }
public override void OnEndPage(PdfWriter writer, Document document)
{
float cellHeight = document.TopMargin;
Rectangle page = document.PageSize;
PdfPTable head = new PdfPTable(2);
head.TotalWidth = page.Width;
PdfPCell c = new PdfPCell(ImageHeader, true);
c.HorizontalAlignment = Element.ALIGN_RIGHT;
c.FixedHeight = cellHeight;
c.Border = PdfPCell.NO_BORDER;
head.AddCell(c);
c = new PdfPCell(new Phrase(
DateTime.UtcNow.ToString("yyyy-MM-dd HH:mm:ss") + " GMT",
new Font(Font.FontFamily.COURIER, 8)
));
c.Border = PdfPCell.TOP_BORDER | PdfPCell.RIGHT_BORDER | PdfPCell.BOTTOM_BORDER | PdfPCell.LEFT_BORDER;
c.VerticalAlignment = Element.ALIGN_BOTTOM;
c.FixedHeight = cellHeight;
head.AddCell(c);
head.WriteSelectedRows(
0, -1, // first/last row; -1 flags all write all rows
0, // left offset
// ** bottom** yPos of the table
page.Height - cellHeight + head.TotalHeight,
writer.DirectContent
);
}
}
Feeling angry and stupid for having lost more than two hours of my life to Windows 8.1! Apparently the built in PDF Reader app isn't competent enough to show 'Headers'/'Footers'. Installed Foxit Reader and opened the output and it shows the Headers allright!
I guess I should try with Adobe Reader too!!!
UPDATES:
I tried opening the generated PDF in Adobe Acrobat reader and finally saw some errors. This made me look at the HTML that I was sending to the XMLWorkerHelper more closely. The structure of the HTML had <div>s inside <table>s and that was tripping up the generated PDF. I cleaned up the HTML to ensure <table> inside <table> and thereafter the PDF came out clean in all readers.
Long story short, the code above is fine, but if you are testing for PDF's correctness, have Adobe Acrobat Reader handy at a minimum. Other readers behave unpredictably as in either not reporting errors or incorrectly rendering the PDF.
We want to add a water mark with user email & name on top of our pdf before we send it. I've written code that does that and it is working great. I want to check if this is the best way of doing this. We want the water mark to be split into two lines at the top of the pdf.
, I used "ShowTextAligned()" twice with different "y" coordinates to achieve that.
private MemoryStream StampPdf(string pdfPath, string name, string email)
{
var memoryStream = new MemoryStream();
var reader = new PdfReader(pdfPath);
var pageCount = reader.NumberOfPages;
var stamper = new PdfStamper(reader, memoryStream);
var textAngle = 0;
var fontSize = 14;
var font = BaseFont.CreateFont(BaseFont.TIMES_ROMAN, BaseFont.WINANSI, BaseFont.EMBEDDED);
var watermarkLine1 = "Personal use only for " + name;
var watermarkLine2 = "at " + email;
using (stamper)
{
for (var i = 1; i <= pageCount; i++)
{
var mediaBox = reader.GetPageSize(i);
var overContent = stamper.GetOverContent(i);
overContent.BeginText();
overContent.SetColorFill(BaseColor.RED);
overContent.SetFontAndSize(font, fontSize);
overContent.ShowTextAligned(PdfContentByte.ALIGN_LEFT, watermarkLine1, 10, mediaBox.Top - 20, textAngle);
overContent.ShowTextAligned(PdfContentByte.ALIGN_LEFT, watermarkLine2, 10, mediaBox.Top - 40, textAngle);
overContent.EndText();
}
}
reader.Close();
stamper.Close();
return memoryStream;
}
I want to confirm two things:
"Is it possible to use ShowTextAligned() to wrap text that reaches the end of the line?"
"Does ShowTextAligned() honor carriage return/newline?"
Thanks,
-Samah
Answer to question 1.: No, you need the ColumnText object to do that.
Answer to question 2.: No, showTextAligned() ignores newline characters.