I am trying to insert a table into a PDF template. It is successful when the table fits on the page. However, if it is too big then we lose data. I basically just want it to paste what is left of the ColumnText to a next page which looks like page # 5.
Here is my current code, it is creating a blank white page in front of page #4 and it is writing the remaining ColumnText data over where it already pasted the first time.
PdfImportedPage templatePage = stamper.GetImportedPage(pdfReader, 5);
int pageNum = 5;
while (true)
{
ct.SetSimpleColumn(-75, 50, PageSize.A4.Height + 25, PageSize.A4.Width - 200);
if (!ColumnText.HasMoreText(ct.Go()))
break;
pageNum++;
stamper.InsertPage(pageNum, new Rectangle(792f, 612f));
stamper.GetOverContent(pageNum).AddTemplate(templatePage, 0, 0);
}
I've created a small code sample named AddLongTable that you can use to complete your code. The reason why all the content is added to the same page is simple. You forgot this line:
ct.setCanvas(stamper.getOverContent(pageNum));
Note that my example is written in Java, but I'm sure you'll know how to adapt it to C#. If you post your fix in a comment, I'll update my answer, adding the C# version of the solution.
Related
i try to print invoices on a pre defined template on a piece of paper.
Because of that template i need some placeholders before the invoice is printed to avoid overplap. Sometimes the invoices get a little bit longer so that i need a second invoice page. If the invoice just has one page everything works fine.
My issue:
If the invoice gets longer (second page) the placeholder has to be on the beginning of the second page as well. I was not able to figure out how to do this.
Here is how i do it on first page:
PdfPTable placeholderTable = new PdfPTable(1);
placeholderTable.setHorizontalAlignment(PdfPTable.ALIGN_RIGHT);
placeholderTable.setWidthPercentage(91f);
PdfPCell placeholderCell = new PdfPCell(new Phrase(" ", font4GroßFett));
placeholderCell.setBorder(0);
placeholderTable.addCell(placeholderCell);
document.add(placeholderTable);
I tried a lot of things but especially i think the following is important (maybe i just use it in a wrong way)
writer.setPageEvent(new PdfPageEventHelper() {
#Override
public void onStartPage(final PdfWriter writer, final Document document) {
//add the placeholder here?
}
});
This seemed to be the best solution but i cant add elements to the document in this method (see offical documentation of itext)
My question is now: How can i set some placeholders (space) to the top of EVERY new page?
Thank you very much for helping!
I am working through some more examples from the new itextpdf website...(good job by the way) I normally add page numbers in headers and footers as a second pass over the document once it is completed.
Is there a way to add the page number dynamically in a header or footer as an onendpage event?
Clearly this could be done by using a counter with document.addPage(), but text may create new pages all by itself when given a large text block so this would then not work.
Thank you very much for your comment on the new web site!
You can indeed get the current page number in the onEndPage() method and add it to the document. Please take a look at the MovieHistory2 example, or better yet: the MovieCountries1 example.
Allow me to simplify the onEndPage() method of these examples:
public void onEndPage(PdfWriter writer, Document document) {
Rectangle rect = writer.getPageSize();
ColumnText.showTextAligned(writer.getDirectContent(),
Element.ALIGN_CENTER, new Phrase(
String.format("page %d", writer.getPageNumber())),
(rect.getLeft() + rect.getRight()) / 2, rect.getBottom() - 18, 0);
}
In this snippet, writer.getPageNumber() will give you the current page number. I add it to the page at the bottom-middle.
I am fairly new to iTextSharp. I create PDFs by adding variable data (text/barcodes/images) to existing PDF documents/templates (think boiler plate). Most commonly, I have to place various sections of text in specific places. I know how to create an ordered list, but I have come across a situation where the list begins with #1 on the first page and then #2-4 on the top of the second page. I use two different templates for p1 and p2.
I am currently creating the document by creating ColumnTexts, placing SimpleColumns with specific coordinates, and then placing phrases inside. I am not sure if this is the best way or not, so I am open for alternative solutions.
I have checked out several places including http://www.mikesdotnetting.com/article/83/lists-with-itextsharp but I see nothing that describes how to start a list at a number other than '1'. None of the 6 overloads provide a parameter for starting number.
Thanks!
There are two answers to your question. The first one is to point you to the official documentation. There is a method setFirst() that (I quote) sets the number that has to come first in the list.
You are using the C# port of iText, so if you want the list to start counting at 10, you need to do something like:
list.First = 10;
The second answer takes more time, but it is probably the better one.You don't need two List objects, one for the first page and one for the second page. It's better to add the List to a ColumnText object and then distribute the column over two pages.
Take a look at the ListInColumn example. It takes an existing PDF (with the text "Hello World Hello People") and it adds a list using ColumnText: list_in_column.pdf
This is how it's done:
PdfReader reader = new PdfReader(src);
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(dest));
List list = new List(List.ORDERED);
for (int i = 0; i < 10; i++) {
list.add("...");
}
ColumnText ct = new ColumnText(stamper.getOverContent(1));
ct.addElement(list);
Rectangle rect = new Rectangle(250, 400, 500, 806);
ct.setSimpleColumn(rect);
int status = ct.go();
if (ColumnText.hasMoreText(status)) {
ct.setCanvas(stamper.getOverContent(2));
ct.setSimpleColumn(rect);
ct.go();
}
stamper.close();
To add the content on the first page, I use:
ColumnText ct = new ColumnText(stamper.getOverContent(1));
You are probably using similar code.
The content is added using the line:
int status = ct.go();
If not all the content was added, I change the canvas to add the rest of the content on the second page:
ct.setCanvas(stamper.getOverContent(2));
The rest of the code is pretty standard.
I think the setCanvas() method is the missing piece in your puzzle, although in your case, you'll need:
ct.Canvas = stamper.GetOverContent(2);
I'm pretty sure I'm missing something simple, but since I've been breaking my head on this for a while, I'm just going to ask.
I'm using JavaScript to access the iText (Java) library to take a filable PDF and serve it up via a browser. The process has worked for my first one, and now I'm doing one where the original fillable PDF has 2 pages. I've been trying to get the second page for a while now. I'm using the PdfContentByte to get it to the browser, and it works except I can't seem to get the PdfContentByte to have a second page. My relevant code is below. When I add the second template (page2) they way I do, it moves what I'm writing, but I'm still just getting one (US letter) page.
This may not be the most efficient code, but like I said, I've been trying a few things on this. If someone has a pointer, I would be very grateful.
var cb:com.itextpdf.text.pdf.PdfContentByte = writer.getDirectContent();
var cb2:com.itextpdf.text.pdf.PdfContentByte = writer.getDirectContent();
var reader2:com.itextpdf.text.pdf.PdfReader = new com.itextpdf.text.pdf.PdfReader(os.toByteArray());
var page:com.itextpdf.text.pdf.PdfImportedPage = writer.getImportedPage(reader2, 1);
cb.addTemplate(page, 0, 0); //this works as expected
var page2:com.itextpdf.text.pdf.PdfImportedPage = writer.getImportedPage(reader2, 2);
// this will add, and with the 100 do an offset, but the
// "physical size" of the paper is the same
cb2.addTemplate(page2, 0, 100);
Have a look at chapter 6 of iText in Action, 2nd edition, especially at subsection 6.4.1: Concatenating and splitting PDF documents.
Listing 6.22, ConcatenateStamp.java, shows you how you should create a PDF from copies of pages of multiple other PDFs; the sample actually additionally adds a new "Page X of Y" footer which you may keep or remove from the sample.
I'm wondering if the dimensions of a page can be altered after content has been added to it?
I'm creating a PDF document in code using iTextSharp, and placing some content on a page. I'll only know the height of the content after drawing it, then I need to basically "crop" the page, so that it's only as tall as the content.
I know I can do this by writing the content to a pdfTemplate, then doing SetPageSize() and NewPage(), then adding the template to the new page. However, this document must only have 1 page. That's the catch - I can't set the size of page 1 after the fact, only subsequent pages, but the doc must only contain one page.
Unless there's a way of deleting page 1 after adding the properly-sized second page, I can't think of how to achieve this: A one-page PDF whose page size I have to change after having written content to it.
I ended up doing the following:
Create document as a memorystream.
Create a pdfTemplate, add content to it and remember how big the content is.
Add a new (2nd) page, the same size as the content, and add template to it.
Reseek to start of memorystream, open a PdfReader on it.
Create a new PDF file with PdfCopy, copying the 2nd page from memory to the file.
After a day searching for a more direct method, this seemed the most expedient. Basically:
dim ms As New IO.MemoryStream
dim doc As New Document
dim pw As PdfWriter = PdfWriter.GetInstance(doc, ms)
doc.Open
Dim cb As PdfContentByte = pw.DirectContent
Dim tpl = cb.CreateTemplate(doc.PageSize.Width, doc.PageSize.Height)
... add content to template ...
' Add template to a new page of the right dimensions
doc.Add(New Paragraph(" ")) ' page 1 content required for NewPage to work
doc.SetPageSize(New Rectangle(width, height)) ' size of content we added
doc.NewPage()
cb.AddTemplate(tpl, 0, 0)
' Close our in-memory doc but leave stream open.
pw.CloseStream = False
pw.Close()
doc.Close()
' Now create actual file and write only second page of doc.
ms.Seek(0, IO.SeekOrigin.Begin) ' Go back to start of memorystream
Dim pr As New PdfReader(ms)
doc = New Document(pr.GetPageSizeWithRotation(2)) ' New doc, size of page 2
Dim copier As New PdfCopy(doc, New IO.FileStream(<filename>, IO.FileMode.Create))
doc.Open()
copier.AddPage(copier.GetImportedPage(pr, 2)) ' Add page 2 of our in-memory document.
copier.Close()
doc.Close()
pr.Close()
Now I have a PDF with a single page custom sized to the content which was added.
Hope it helps someone else!