เพิ่มลายน้ำในงานนำเสนอ PPTX โดยใช้ Python

import aspose.slides as slides
import aspose.pydrawing as draw

with slides.Presentation() as pres:
    master = pres.masters[0]

    watermarkShape = master.shapes.add_auto_shape(slides.ShapeType.RECTANGLE, 0, 0, 100, 100)
    watermarkTextFrame = watermarkShape.add_text_frame("Watermark")

    # Lock Watermark from Editing
    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 Text Watermark Transparency
    watermarkPortion = watermarkTextFrame.paragraphs[0].portions[0]
    watermarkPortion.portion_format.fill_format.fill_type = slides.FillType.SOLID
    watermarkPortion.portion_format.fill_format.solid_fill_color.color = draw.Color.from_argb(150, 200, 200, 200)
    
    # Set Font Size of Text Watermark
    watermarkPortion.portion_format.font_height = 16

    pres.save("watermark.pptx", slides.export.SaveFormat.PPTX)

import aspose.slides as slides

with slides.Presentation() as presentation:
    with open("image1.png", "rb") as fs:
        data = fs.read()
    image = presentation.images.add_image(data)

    master = presentation.masters[0]
    watermarkShape = master.shapes.add_auto_shape(slides.ShapeType.RECTANGLE, 0, 0, image.width, image.height)
    
    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

    presentation.save("watermark2.pptx", slides.export.SaveFormat.PPTX)