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Add stamp annotationkeyboard_arrow_down

Add a stamp annotation

A stamp in a PDF document is analogous to applying a rubber stamp on a paper document.

PDFTron SDK benefits include:

  • Stamp PDF pages with text, images, or with other PDF pages.
  • Embed fonts and images, and copy graphical elements from one page to another.

linkStamp a PDF Page

To stamp an image to a page in a PDF document.

PDFDoc doc = new PDFDoc(fileName);
Stamper stamper = new Stamper(StamperSizeType.e_relative_scale, .05, .05);
    
Image image = Image.Create(new SDFDoc(doc), imageName);
stamper.SetSize(StamperSizeType.e_relative_scale, 0.5, 0.5);

// set position of the image to the center, left of PDF pages
stamper.SetAlignment(StamperHorizontalAlignment.e_horizontal_left, StamperVerticalAlignment.e_vertical_center);
ColorPt colorPoint = new ColorPt(0, 0, 0, 0);
stamper.SetFontColor(colorPoint);
stamper.SetRotation(180);

// Specifies if the stamp is to be stamped in the background or the foreground.
//stamper.SetAsBackground(false);

// Specifies if the stamp is to be stamped as an annotation.
// note that stamps created with this setting do not work with SetAsBackground, HasStamps, and DeleteStamps, if annotation is true.
stamper.SetAsAnnotation(true); 

// only stamp first 2 pages
PageSet pageSet = new PageSet(1, 2);
stamper.StampImage(doc, image, pageSet);

Stamp a PDF File
Full code sample which shows how to stamp PDF pages with text, images, or with other PDF pages and how to add new content (or watermark).

linkAbout stamping a PDF page

Stamper can be used for PDF pages with text, images, or with other PDF content in only a few lines of code. Although Stamper is very simple to use compared to ElementBuilder/ElementWriter it is not as powerful or flexible. In case you need full control over PDF creation use ElementBuilder/ElementWriter to add new content to existing PDF pages as shown in the ElementBuilder sample project.

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