Add image watermarks Leave feedback

One of the main features of GroupDocs.Watermark is adding image watermarks to documents. You can add watermarks to documents or images from a local path, as well as from a stream. For a full list of supported formats, check Supported document formats.

To add an image watermark, follow these steps:

1. Open the document by passing its path (or a stream) to the Watermarker class.
2. Create an ImageWatermark from the watermark image file (or a stream).
3. Position the watermark — for example, set horizontal_alignment, vertical_alignment, and opacity.
4. Call add() to apply the watermark and save() to write the result.

from groupdocs.watermark import Watermarker
from groupdocs.watermark.watermarks import ImageWatermark
from groupdocs.watermark.common import HorizontalAlignment, VerticalAlignment

def add_image_watermark():
    with Watermarker("./sample.docx") as watermarker:
        # Build an image watermark from a logo file and center it
        watermark = ImageWatermark("./logo.png")
        watermark.horizontal_alignment = HorizontalAlignment.CENTER
        watermark.vertical_alignment = VerticalAlignment.CENTER
        watermark.opacity = 0.7

        watermarker.add(watermark)
        watermarker.save("./output.docx")

if __name__ == "__main__":
    add_image_watermark()

sample.docx and logo.png are the sample files used in this example. Download sample.docx and logo.png.

Binary file (DOCX, 125 KB)

Download full output

GroupDocs.Watermark offers more capabilities for image watermarks — loading from streams, scaling, tiling, and absolute or relative positioning. See Adding image watermarks in the advanced guide.