watermark text in all the pdf pages of existing pdf

Usha Talakanti

10y15.2kVisual Basic .NET

how to add watermark (text or image) in existing pdf in c#.I want the watermark in all the pages of the pdf .

I tired by itextsharp but the watermark is displaying in only last page of the pdf.

I want watermark in all pages

public void CreateTemplate(string watermarkText, string targetFileName)

{

var document = new Document();

var pdfWriter = PdfWriter.GetInstance(document, new FileStream(targetFileName, FileMode.Create));

var font = new iTextSharp.text.Font(iTextSharp.text.Font.HELVETICA, 60, iTextSharp.text.Font.NORMAL, iTextSharp.text.Color.LIGHT_GRAY);

document.Open();

ColumnText.ShowTextAligned(pdfWriter.DirectContent, Element.ALIGN_CENTER, new Phrase(watermarkText, font), 300, 400, 45);

document.Close();

}

public void AddTextWatermark(string sourceFilePath, string watermarkTemplatePath, string targetFilePath)

{

var pdfReaderSource = new PdfReader(sourceFilePath);

var pdfStamper = new PdfStamper(pdfReaderSource, new FileStream(targetFilePath, FileMode.Create));

var pdfReaderTemplate = new PdfReader(watermarkTemplatePath);

var page = pdfStamper.GetImportedPage(pdfReaderTemplate, 1);

for (var i = 0; i < pdfReaderSource.NumberOfPages; i++)

{

var content = pdfStamper.GetUnderContent(i + 1);

content.AddTemplate(page, 0, 0);

}

pdfStamper.Close();

pdfReaderTemplate.Close();

}

6 Replies

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Arul R10y ago
Accepted answer
Kindly refer the below links, Hope this will solve your problem.

http://www.bluelemoncode.com/post/2011/12/21/Using-iTextSharp-with-aspnet-to-add-watermark-in-pdf-file.aspx

http://www.donnfelker.com/using-itextsharp-to-watermarkwrite-text-to-existing-pdfs/

http://forums.asp.net/t/1647291.aspx?Add+watermark+to+pdf+file+created+at+run+time+using+itextsharp

http://stackoverflow.com/questions/17522965/how-to-add-a-watermark-to-a-pdf-file

http://stackoverflow.com/questions/2372041/c-sharp-itextsharp-pdf-creation-with-watermark-on-each-page

Let me know for any thing more....

If your problem solved means kindly Accept my answer
+2
Kip Hackman5y ago
You can use LEADTOOLS Document SDK technology in your application.
https://www.leadtools.com/sdk/products/document
You can leverage the AnnBatesStampComposer class, to add a watermark, then use the AnnRenderingEngine to burn the watermark to the image.

Here is a tutorial on how to achieve this:
https://www.leadtools.com/help/sdk/v21/tutorials/annotation/windows/dotnet/console/add-watermark-to-multipage-file.html
+1
Gajendra Jangid7y ago
try this links:

https://www.donnfelker.com/using-itextsharp-to-watermarkwrite-text-to-existing-pdfs/
+1
sudhanshu Gupta9y ago
Dear sir,

i want to show watermark on all pages but its showing on last page of pdf file. please help me out asap.

below is my code. which used on button click.

protected void Button1_Click(object sender, EventArgs e)
{
Document doc = new Document(PageSize.A4, 20f, 20f, 20f, 20f);

PdfGState _state;
PdfWriter writer = PdfWriter.GetInstance(doc, new FileStream(
Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + "/WaterMark.pdf", FileMode.Create));
doc.Open();
var pagenumber = writer.PageNumber;

int n = pagenumber;

//string imageURL = "D:\sudhanshu/opr/OprNew17-06-2017/opr/images/login-logo.png";

//iTextSharp.text.Image jpg = iTextSharp.text.Image.GetInstance(imageURL);
//doc.Add(jpg);

doc.Add(this.AddParagraphHeader("Getting ready"));
doc.Add(this.AddParagragh(@"At the top level, there is a Figure instance containing all that we see and some more (that we don't see). The figure contains, among other things, instances of the Axes class as a Figure.axes field. The Axes instances contain almost everything we care about: all the lines, points, ticks, and labels. So, when we call plot(), we are adding a line (matplotlib.lines.Line2D) to the Axes.lines list. If we plot a histogram (hist()), we are adding rectangles to the list of Axes.patches ('patches' is the term inherited from MATLAB®, and it represents the 'patch of color' concept)."));
doc.Add(this.AddParagragh(@"An instance of Axes also holds references to the XAxis and YAxis instances, which in turn refer to the x axis and y axis, respectively. The XAxis and YAxis instances manage the drawing of the axis, labels, ticks, tick labels, locators, and formatters. We can reference these through Axes.xaxis and Axes.yaxis, respectively. We don't have to go all the way down to XAxis or YAxis instances to get to the labels as matplotlib gives us a helper method (practically a shortcut) that enables iterations via these labels: matplotlib.pyplot.xlabel() and matplotlib.pyplot.ylabel()."));
doc.Add(this.AddParagragh(@"At the top level, there is a Figure instance containing all that we see and some more (that we don't see). The figure contains, among other things, instances of the Axes class as a Figure.axes field. The Axes instances contain almost everything we care about: all the lines, points, ticks, and labels. So, when we call plot(), we are adding a line (matplotlib.lines.Line2D) to the Axes.lines list. If we plot a histogram (hist()), we are adding rectangles to the list of Axes.patches ('patches' is the term inherited from MATLAB®, and it represents the 'patch of color' concept)."));
doc.Add(this.AddParagragh(@"An instance of Axes also holds references to the XAxis and YAxis instances, which in turn refer to the x axis and y axis, respectively. The XAxis and YAxis instances manage the drawing of the axis, labels, ticks, tick labels, locators, and formatters. We can reference these through Axes.xaxis and Axes.yaxis, respectively. We don't have to go all the way down to XAxis or YAxis instances to get to the labels as matplotlib gives us a helper method (practically a shortcut) that enables iterations via these labels: matplotlib.pyplot.xlabel() and matplotlib.pyplot.ylabel()."));
doc.Add(this.AddParagragh(@"At the top level, there is a Figure instance containing all that we see and some more (that we don't see). The figure contains, among other things, instances of the Axes class as a Figure.axes field. The Axes instances contain almost everything we care about: all the lines, points, ticks, and labels. So, when we call plot(), we are adding a line (matplotlib.lines.Line2D) to the Axes.lines list. If we plot a histogram (hist()), we are adding rectangles to the list of Axes.patches ('patches' is the term inherited from MATLAB®, and it represents the 'patch of color' concept)."));
doc.Add(this.AddParagragh(@"An instance of Axes also holds references to the XAxis and YAxis instances, which in turn refer to the x axis and y axis, respectively. The XAxis and YAxis instances manage the drawing of the axis, labels, ticks, tick labels, locators, and formatters. We can reference these through Axes.xaxis and Axes.yaxis, respectively. We don't have to go all the way down to XAxis or YAxis instances to get to the labels as matplotlib gives us a helper method (practically a shortcut) that enables iterations via these labels: matplotlib.pyplot.xlabel() and matplotlib.pyplot.ylabel()."));

//water mark

PdfContentByte cb = writer.DirectContent;

BaseFont bfTimes = BaseFont.CreateFont(BaseFont.TIMES_ROMAN, BaseFont.CP1252, false);

Font times = new Font(bfTimes, 120F, Font.TIMES_ROMAN, Color.LIGHT_GRAY);

_state = new PdfGState()
{
FillOpacity = 0.2F,
StrokeOpacity = 0.2F

};
cb.SetGState(_state);

//ColumnText.ShowTextAligned(cb, Element.ALIGN_CENTER, new Phrase("www.giftalove.com", times), 310F, 400F, 55);
ColumnText.ShowTextAligned(writer.DirectContentUnder, Element.ALIGN_CENTER, new Phrase("www.jobsncr.in", times), 310, 400, writer.PageNumber % 2 == 1 ? 60 : 55);

pdfReader(writer, times);

doc.Close();
System.Diagnostics.Process.Start(Environment.GetFolderPath(
Environment.SpecialFolder.Desktop) + "/WaterMark.pdf");

//End water mark

}
+1
Usha Talakanti10y ago
Hi,

By Itextsharp i am getting the watermark in all the pages but by using GetUnderContent
the watermark is hiding on the content and on the last page it is showing . By Using GetOverContent it is showing in all the pages but above the content the content is hiding .

can you help on this?
+1
Lisa White10y ago
hi there,

I've used following library before to add watermark to all pages in an existing pdf, it works for me, see:
http://www.c-sharpcorner.com/uploadfile/a71939/how-to-add-watermark-on-pdf-files/

if you're going to add text watermark, you can also refer this sample which you could download to have a test:
https://code.msdn.microsoft.com/Add-a-text-watermark-on-e56799cf

if my answer is helpful, hope you can accept it, thanks!
+2