Pdf Stamps And Watermarks


Pdf Stamps And Watermarks

Stamps and Watermarks are done using pdf templates that contain elements that repeat on each page of the pdf document.

Pdf Stamps Sample Code

This sample code shows how to create a new PDF document using Select.Pdf, how to add several pages and stamp all the pages with an image.

Copy

// create a new pdf document
PdfDocument doc = new PdfDocument();

// create a new pdf font
PdfFont font = doc.AddFont(PdfStandardFont.Helvetica);
font.Size = 24;

// add a new page to the document
PdfPage page = doc.AddPage();

// create a new text element and add it to the page
PdfTextElement text = new PdfTextElement(0, 0, Helper.SomeLongText(), font);
page.Add(text);

// get image path
string imgFile = Server.MapPath("~/files/logo.png");

// stamp all pages - add a template containing an image to the bottom right of 
// the page the image should repeat on all pdf pages automatically
PdfTemplate template = doc.AddTemplate(doc.Pages[0].ClientRectangle);
PdfImageElement img = new PdfImageElement(
    doc.Pages[0].ClientRectangle.Width - 300, 
    doc.Pages[0].ClientRectangle.Height - 150, imgFile);
template.Add(img);

// save pdf document
doc.Save(Response, false, "Sample.pdf");

// close pdf document
doc.Close();

' create a new pdf document
Dim doc As New PdfDocument()

' create a new pdf font
Dim font As PdfFont = doc.AddFont(PdfStandardFont.Helvetica)
font.Size = 24

' add a new page to the document
Dim page As PdfPage = doc.AddPage()

' create a new text element and add it to the page
Dim text As New PdfTextElement(0, 0, Helper.SomeLongText(), font)
page.Add(text)

' get image path
Dim imgFile As String = Server.MapPath("~/files/logo.png")

' stamp all pages - add a template containing an image to the bottom right of the page
' the image should repeat on all pdf pages automatically
Dim template As PdfTemplate = doc.AddTemplate(doc.Pages(0).ClientRectangle)
Dim img As New PdfImageElement(doc.Pages(0).ClientRectangle.Width - 300, _
                               doc.Pages(0).ClientRectangle.Height - 150, imgFile)
template.Add(img)

' save pdf document
doc.Save(Response, False, "Sample.pdf")

' close pdf document
doc.Close()

Pdf Watermarks Sample Code

This sample code shows how to create a new PDF document using Select.Pdf, how to add several pages and watermark all the pages with a transparent image in the background.

Copy

// create a new pdf document
PdfDocument doc = new PdfDocument();

// create a new pdf font
PdfFont font = doc.AddFont(PdfStandardFont.Helvetica);
font.Size = 24;

// add a new page to the document
PdfPage page = doc.AddPage();

// create a new text element and add it to the page
PdfTextElement text = new PdfTextElement(0, 0, Helper.SomeLongText(), font);
page.Add(text);

// get image path
string imgFile = Server.MapPath("~/files/logo.png");

// watermark all pages - add a template containing an image 
// to the bottom right of the page
// the image should repeat on all pdf pages automatically
// the template should be rendered behind the rest of the page elements
PdfTemplate template = doc.AddTemplate(doc.Pages[0].ClientRectangle);
PdfImageElement img = new PdfImageElement(
    doc.Pages[0].ClientRectangle.Width - 300, 
    doc.Pages[0].ClientRectangle.Height - 150, imgFile);
img.Transparency = 50;
template.Background = true;
template.Add(img);

// save pdf document
doc.Save(Response, false, "Sample.pdf");

// close pdf document
doc.Close();

' create a new pdf document
Dim doc As New PdfDocument()

' create a new pdf font
Dim font As PdfFont = doc.AddFont(PdfStandardFont.Helvetica)
font.Size = 24

' add a new page to the document
Dim page As PdfPage = doc.AddPage()

' create a new text element and add it to the page
Dim text As New PdfTextElement(0, 0, Helper.SomeLongText(), font)
page.Add(text)

' get image path
Dim imgFile As String = Server.MapPath("~/files/logo.png")

' watermark all pages - add a template containing an image 
' to the bottom right of the page
' the image should repeat on all pdf pages automatically
' the template should be rendered behind the rest of the page elements
Dim template As PdfTemplate = doc.AddTemplate(doc.Pages(0).ClientRectangle)
Dim img As New PdfImageElement(doc.Pages(0).ClientRectangle.Width - 300, _
                               doc.Pages(0).ClientRectangle.Height - 150, imgFile)
img.Transparency = 50
template.Background = True
template.Add(img)

' save pdf document
doc.Save(Response, False, "Sample.pdf")

' close pdf document
doc.Close()

Reference

PdfDocument

PdfTemplate

Other Resources

Pdf Templates