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Stamp

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.

doc = PDFDoc(filename)
s = Stamper(Stamper.e_relative_scale, 0.05, 0.05)

img = Image.Create(doc.GetSDFDoc(), imagename)
s.SetSize(Stamper.e_relative_scale, 0.5, 0.5)

# set position of the image to the center, left of PDF pages
s.SetAlignment(Stamper.e_horizontal_left, Stamper.e_vertical_center)
pt = ColorPt(0, 0, 0, 0)
s.SetFontColor(pt)
s.SetRotation(180)
s.SetAsBackground(False)

# only stamp first 2 pages
ps = PageSet(1, 2)
s.StampImage(doc, img, ps)

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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