I'm using iText library for generating PDFs where I have a table that spans across pages. In order to continue my text splits across pages, i'v used setSplitLate as false. In some generated PDFs, last line of page 1 gets repeated in first line of page 2.
Is there any property that needs to be set to avoid duplication of lines across pages?
e.g. code
Document document = new Document(PageSize.A4, 0, 0,0, 45);
document.open();
PdfWriter writer;
PdfPTable table = new PdfPTable(2);
table.setWidthPercentage(100);
table.setSplitLate(false);
//added stuff in table
document.add(table);
adding footer in onEndPage():
PdfPTable footer = new PdfPTable(1);
footer.setTotalWidth(595);
PdfPCell footerCell = new PdfPCell();
footerCell.setPaddingTop(10f);
footerCell.setBorder(Rectangle.NO_BORDER);
footer.addCell(footerCell);
footer.writeSelectedRows(0, -1, 0, document.bottom(), writer.getDirectContent());
Related
I am in the process of updating some PDF editing tools from iTextSharp to iText7.
In iTextSharp there was a method in the pdfStamper class: pdfStamper.ReplacePage().
However, the pdfStamper class has been removed in iText7 and I am having trouble replicating the same functionality.
Say I have document X that needs page 4 replaced with page 1 of document Y but I want the result to be save to a new document Z.
So far I have 3 lines that use the CopyPageTo method. However any PDF document that gets created is only 1kb in size and corrupted.
Anyone have experience with the newer iText7 and the CopyPageTo method?
NewPagesReader = New PdfReader(strNewPageDocPath)
docNewPages = New PdfDocument(NewPagesReader)
OriginalDocReader = New PdfReader(strOrigPageDocPath)
docOringal = New PdfDocument(OriginalDocReader)
Dim docNew As PdfDocument
Dim NewPDFWriter As New PdfWriter(saver.FileName)
docNew = New PdfDocument(NewPDFWriter)
docOringal.CopyPagesTo(1, 3, docNew)
docNewPages.CopyPagesTo(1, 1, docNew)
docOringal.CopyPagesTo(5, 6, docNew)
ToWriter.Close()
docNew.Close()
Your code looks fine. Instead of copying all the pages to a new document, you can also delete and insert a page:
NewPagesReader = New PdfReader(strNewPageDocPath)
docNewPages = New PdfDocument(NewPagesReader)
OriginalDocReader = New PdfReader(strOrigPageDocPath)
Dim NewPDFWriter As New PdfWriter(saver.FileName)
docOringal = New PdfDocument(OriginalDocReader, NewPDFWriter)
docOringal.RemovePage(4)
docNewPages.CopyPagesTo(1, 1, docOringal, 4)
docOringal.Close()
I am just fiddeling around with Flying Saucer to generate a PDF from a plain HTML Template I wrote.
Unfortunately, flying saucer seems to generate 1/2 empty page on my first page so the main content actually just begins on the second half of the first page.
There is really not much to show as I am working with a normal html page that lies in a String Object consisting of some table and well-formed html. Displaying the html shows exactly what I want and the part that gets rendered does also look great and as expected - but there is half an empty page...
Document document = new Document(PageSize.A4, 0, 0, 0, 0);
PdfWriter writer;
PdfImportedPage page;
byte[] pdfDaten;
writer = PdfWriter.getInstance(document, baos);
document.open();
PdfContentByte cb = writer.getDirectContent();
PdfReader pdfPage = pdfBuilder.doRenderGeneratorToPDF(html_page);
document.setPageSize(PageSize.A4);
page = writer.getImportedPage(pdfPage, 1);
document.newPage();
cb.addTemplate(page, 0, 0);
document.close();
baos.flush();
pdfDaten = baos.toByteArray();
baos.close();
return pdfDaten;
Did anybody else experience this problem and has a hint or solution?
I am creating a new PDF that will contain a compilation of other documents.
These other documents can be word/excel/images/PDF's.
I am hoping to add all of this content to cells in a table, which is added to the document - this gives me the goodness of automatically adding pages, positioning elements in a cell rather than a page and allowing me an easier life at keeping content in the same order as i supply (such as img, doc, pdf, img, pdf etc)
Adding images to the table is simple enough.
I am converting the word/excel docs to PDF image streams. I'm also reading in the existing PDF's as a stream.
Adding these to a new PDF is simple enough - by way of adding a template to the PdfContent byte.
What I am trying to do though is add these PDF's to cells in a table, which are then added to the doc.
Is this possible?
Please download chapter 6 of my book. It contains two variations on what you are trying to do:
ImportingPages1, with as result time_table_imported1.pdf
ImportingPages2, with as result time_table_imported2.pdf
This is a code snippet:
// step 1
Document document = new Document();
// step 2
PdfWriter writer
= PdfWriter.getInstance(document, new FileOutputStream(RESULT));
// step 3
document.open();
// step 4
PdfReader reader = new PdfReader(MovieTemplates.RESULT);
int n = reader.getNumberOfPages();
PdfImportedPage page;
PdfPTable table = new PdfPTable(2);
for (int i = 1; i <= n; i++) {
page = writer.getImportedPage(reader, i);
table.getDefaultCell().setRotation(-page.getRotation());
table.addCell(Image.getInstance(page));
}
document.add(table);
// step 5
document.close();
reader.close();
The pages are imported as PdfImportedPage objects, and then wrapped inside an Image so that we can add them to a PdfPTable.
I want to write line by line on a pdf document
the code I have is writing the text in the center of the page
how can I write line by line?
// Create a new PDF document
PdfDocument document = new PdfDocument();
document.Info.Title = "Created with PDFsharp";
// Create an empty page
PdfPage page = document.AddPage();
// Get an XGraphics object for drawing
XGraphics gfx = XGraphics.FromPdfPage(page);
// Create a font
XFont font = new XFont("Verdana", 20, XFontStyle.BoldItalic);
// Draw the text
gfx.DrawString("Hello, World!", font, XBrushes.Black,
new XRect(0, 0, page.Width, page.Height),
XStringFormats.TopCenter);
With new XRect(0, 0, page.Width, page.Height) you specify where text will be drawn.
Use a smaller rectangle and increase the second value from line to line.
PDFsharp includes several examples:
http://pdfsharp.net/wiki/PDFsharpSamples.ashx
Especially check Text Layout. Sample code included with the source package of PDFsharp.
Also check out MigraDoc as it adds pagebreaks automatically.
http://pdfsharp.net/wiki/MigraDocSamples.ashx
I am adding text to an already created pdf document using this method.
ITextSharp insert text to an existing pdf
Basically it uses the PdfContentByte and then adds the content template to the page.
I am finding that in some areas of the file, the text doesn't show up.
It seems that the text I am adding is showing up behind the content that is already on the page? I flattened the pdf document down to it just being images but I am still having the same issue happen with the flattened file.
Has anyone had any issues adding text being hidden using Itextsharp?
I also tried using DirectContentUnder as was suggested in this link to no avail..
iTextSharp hides text when write
Here is the code I am using...With this I am trying to basically overlay graph paper on top of the PDF. In this example, there is a box in the upper left corner of every page that doesn't get populated. There is an image in the original pdf in this spot. And on the 4th and 5th pages, there are boxes that don't get populated, but they don't seem to be images.
PdfReader reader = new PdfReader(oldFile);
iTextSharp.text.Rectangle size = reader.GetPageSizeWithRotation(1);
Document document = new Document(size);
// open the writer
FileStream fs = new FileStream(newFile, FileMode.Create, FileAccess.Write);
PdfWriter writer = PdfWriter.GetInstance(document, fs);
document.Open();
// the pdf content
PdfContentByte cb = writer.DirectContent;
for (int i = 0; i < reader.NumberOfPages; i++)
{
document.NewPage();
// select the font properties
BaseFont bf = BaseFont.CreateFont(BaseFont.HELVETICA_BOLD, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
cb.SetFontAndSize(bf, 4);
cb.SetColorStroke(BaseColor.GREEN);
cb.SetLineWidth(1f);
for (int j = 10; j < 600; j += 10)
{
WriteToDoc(ref cb, j.ToString(), j, 10);//Write the line number
WriteToDoc(ref cb, j.ToString(), j, 780);//Write the line number
if (j % 20 == 0)
{
cb.MoveTo(j, 20);
cb.LineTo(j, 760);
cb.Stroke();
}
}
for (int j = 10; j < 800; j += 10)
{
WriteToDoc(ref cb, j.ToString(), 5, j);//Write the line number
WriteToDoc(ref cb, j.ToString(), 590, j);//Write the line number
if (j % 20 == 0)
{
cb.MoveTo(15, j);
cb.LineTo(575, j);
cb.Stroke();
}
}
// create the new page and add it to the pdf
PdfImportedPage page = writer.GetImportedPage(reader, i + 1);
cb.AddTemplate(page, 0, 0);
}
// close the streams and voilá the file should be changed :)
document.Close();
fs.Close();
writer.Close();
reader.Close();
Thanks for any of the help you can provide...I really appreciate it!
-Greg
First of all: If you are trying to basically overlay graph paper on top of the PDF, why do you first draw the graph paper and stamp the original page onto it? You essentially are underlaying graph paper, not overlaying it.
Depending on the content of the page, your graph paper this way may easily get covered. E.g. if there is a filled rectangle in the page content, in the result there is a box in the upper left corner of every page that doesn't get populated.
Thus, simply first add the old page content, then add overlay changes.
This being said, for the task of applying changes to an existing PDF, using PdfWriter and GetImportedPage is less than optimal. This actually is a task for the PdfStamper class which its made for stamping additional content on existing PDFs.
E.g. have a look at the sample StampText, the pivotal code being:
PdfReader reader = new PdfReader(resource);
using (var ms = new MemoryStream())
{
using (PdfStamper stamper = new PdfStamper(reader, ms))
{
PdfContentByte canvas = stamper.GetOverContent(1);
ColumnText.ShowTextAligned( canvas, Element.ALIGN_LEFT, new Phrase("Hello people!"), 36, 540, 0 );
}
return ms.ToArray();
}