# 使用 Python 将水印添加到 PPTX 演示文件

> Python 源代码，用于将水印添加到 PPTX 演示文稿。

Source: https://products.aspose.com/slides/zh/python-net/watermark/pptx/
Updated: 2023-06-14



## 通过 Python 为 PPTX 演示文稿添加水印

使用 Aspose.Slides for Python via .NET，您可以为 PPTX 演示文稿添加水印。水印是任何演示文稿的重要组成部分。它们用于保护演示文稿的内容不被复制或未经许可使用。水印是放置在演示文稿顶部的可见或不可见的图像或文本。它可用于识别演示文稿的所有者并防止未经授权的使用。水印也可用于为演示文稿增添专业气息并使其看起来更加精美。

### 使用 Python 将文本水印添加到 PPTX

```py

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)
```

### 使用 Python 将图像水印添加到 PPTX 演示文稿

```py

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)
```

## 如何通过 Python 为 PPTX 添加水印

这些是将文本水印添加到 PPTX 文件的步骤。

使用 Presentation 实例加载 PPTX

选择主演示文稿

使用 AddAutoShape 方法添加形状类型

使用 AddTextFrame 方法添加水印文本

以 PPTX 格式保存结果

## 其他支持的格式