Add Text or Image Watermark to PowerPoint PPT in Python

readme.md

Read the complete article on how to add a text or image watermark to PowerPoint PPT slides in Python: https://blog.aspose.com/2022/02/09/add-watermark-to-powerpoint-ppt-in-python/

add-image-watermark-to-ppt.py

import aspose.slides as slides
import aspose.pydrawing as drawing

# load presentation
with slides.Presentation("presentation.pptx") as presentation:
    # select slide
    slide = presentation.slides[0]

    # set watermark position
    center = drawing.PointF(presentation.slide_size.size.width / 2, presentation.slide_size.size.height / 2)
    width = 100
    height = 100
    x = center.x - width / 2
    y = center.y - height / 2

    # load image
    with open("python-logo.png", "rb") as fs:
        data = fs.read()
        image = presentation.images.add_image(data)

        # add watermark
        watermarkShape = slide.shapes.add_auto_shape(slides.ShapeType.RECTANGLE, x, y, height, width)
        watermarkShape.name = "watermark"

        # set image for watermark
        watermarkShape.fill_format.fill_type = slides.FillType.PICTURE
        watermarkShape.fill_format.picture_fill_format.picture.image = image
        watermarkShape.fill_format.picture_fill_format.picture_fill_mode = slides.PictureFillMode.STRETCH
        watermarkShape.line_format.fill_format.fill_type = slides.FillType.NO_FILL

        # send to back
        slide.shapes.reorder(0, watermarkShape)

        # lock watermark to avoid modification
        watermarkShape.shape_lock.select_locked = True
        watermarkShape.shape_lock.size_locked = True
        watermarkShape.shape_lock.text_locked = True
        watermarkShape.shape_lock.position_locked = True
        watermarkShape.shape_lock.grouping_locked = True

    # save presentation
    presentation.save("image-watermark-ppt.pptx", slides.export.SaveFormat.PPTX)

add-text-watermark-to-ppt-slide.py

import aspose.slides as slides
import aspose.pydrawing as drawing

# load presentation
with slides.Presentation("presentation.pptx") as presentation:
    # select slide
    slide = presentation.slides[0]

    # set watermark position
    center = drawing.PointF(presentation.slide_size.size.width / 2, presentation.slide_size.size.height / 2)
    width = 300
    height = 300
    x = center.x - width / 2
    y = center.y - height / 2

    # add watermark
    watermarkShape = slide.shapes.add_auto_shape(slides.ShapeType.RECTANGLE, x, y, height, width)
    watermarkShape.name = "watermark"
    watermarkShape.fill_format.fill_type = slides.FillType.NO_FILL
    watermarkShape.line_format.fill_format.fill_type = slides.FillType.NO_FILL

    # set watermark text, font and color
    watermarkTextFrame = watermarkShape.add_text_frame("Watermark")
    watermarkPortion = watermarkTextFrame.paragraphs[0].portions[0]
    watermarkPortion.portion_format.font_height = 52        
    watermarkPortion.portion_format.fill_format.fill_type = slides.FillType.SOLID
    watermarkPortion.portion_format.fill_format.solid_fill_color.color = drawing.Color.red

    # lock watermark to avoid modification
    watermarkShape.shape_lock.select_locked = True
    watermarkShape.shape_lock.size_locked = True
    watermarkShape.shape_lock.text_locked = True
    watermarkShape.shape_lock.position_locked = True
    watermarkShape.shape_lock.grouping_locked = True

    # set rotation
    watermarkShape.rotation = -45

    # send to back
    slide.shapes.reorder(0, watermarkShape)

    # save presentation
    presentation.save("text-watermark-slide.pptx", slides.export.SaveFormat.PPTX)

add-text-watermark-to-ppt.py

import aspose.slides as slides
import aspose.pydrawing as drawing

# load presentation
with slides.Presentation("presentation.pptx") as presentation:
    # select slide
    master = presentation.masters[0]

    # set watermark position
    center = drawing.PointF(presentation.slide_size.size.width / 2, presentation.slide_size.size.height / 2)
    width = 300
    height = 300
    x = center.x - width / 2
    y = center.y - height / 2

    # add watermark
    watermarkShape = master.shapes.add_auto_shape(slides.ShapeType.RECTANGLE, x, y, height, width)
    watermarkShape.name = "watermark"
    watermarkShape.fill_format.fill_type = slides.FillType.NO_FILL
    watermarkShape.line_format.fill_format.fill_type = slides.FillType.NO_FILL

    # set watermark text, font and color
    watermarkTextFrame = watermarkShape.add_text_frame("Watermark")
    watermarkPortion = watermarkTextFrame.paragraphs[0].portions[0]
    watermarkPortion.portion_format.font_height = 52        
    watermarkPortion.portion_format.fill_format.fill_type = slides.FillType.SOLID
    watermarkPortion.portion_format.fill_format.solid_fill_color.color = drawing.Color.red

    # lock watermark to avoid modification
    watermarkShape.shape_lock.select_locked = True
    watermarkShape.shape_lock.size_locked = True
    watermarkShape.shape_lock.text_locked = True
    watermarkShape.shape_lock.position_locked = True
    watermarkShape.shape_lock.grouping_locked = True

    # send to back
    master.shapes.reorder(0, watermarkShape)

    # set rotation
    watermarkShape.rotation = -45

    # save presentation
    presentation.save("text-watermark-ppt.pptx", slides.export.SaveFormat.PPTX)

remove-watermark.py

import aspose.slides as slides
import aspose.pydrawing as drawing

# load presentation
with slides.Presentation("text-watermark-slide.pptx") as presentation:
    # select slide
    slide = presentation.slides[0]

    shapesToRemove=[]

    # loop through all the shapes in slide
    for i in range(len(slide.shapes)):
        shape = slide.shapes[i]

        # if shape is watermark
        if shape.name == "watermark":                
            shapesToRemove.append(shape)

    # loop through all the shapes to be removed
    for i in range(len(shapesToRemove)):
        # remove shape
        slide.shapes.remove(shapesToRemove[i])

    # save presentation
    presentation.save("remove-watermark.pptx", slides.export.SaveFormat.PPTX)