如何使用Python在PPT转PDF时正确提取和包含图像？

安装必要的Python库，如Python P PT X和ReportLab：

pip install python-pptx reportlab
创建一个Python函数来处理PPT转换为PDF的过程：
from pptx import Presentation
from reportlab.lib.pagesizes import letter
from reportlab.pdfgen import canvas
def convert_ppt_to_pdf(filename):
    prs = Presentation(filename)
    ppt_images = []
    for slide in prs.slides:
        for shape in slide.shapes:
            if shape.has_image:
                ppt_images.append(shape.image)
    canvas_obj = canvas.Canvas("converted_file.pdf", pagesize=letter)
    x = 50
    y = 700
    for image in ppt_images:
        image_file = image.blob
        with open("temp_image.jpg", "wb") as f:
            f.write(image_file)
        canvas_obj.drawImage("temp_image.jpg", x, y, width=500, height=400)
        y -= 450
    canvas_obj.save()
    return "PPT successfully converted to PDF"
在函数中，我们首先使用Python PPTX库打开PPT文件，然后遍历每个幻灯片和每个形状以找到图像。
对于PPT中的每个图像，我们将其提取为JPG文件并使用ReportLab库插入到生成的PDF文件中。
最后，我们返回成功转换的消息。
完整代码：
from pptx import Presentation
from reportlab.lib.pagesizes import letter
from reportlab.pdfgen import canvas
def convert_ppt_to_pdf(filename):
    prs = Presentation(filename)
    ppt_images = []
    for slide in prs.slides:
        for shape in slide.shapes:
            if shape.has_image:
                ppt_images.append(shape.image)
    canvas_obj = canvas.Canvas("converted_file.pdf", pagesize=letter)
    x = 50
    y = 700
    for image in ppt_images:
        image_file = image.blob
        with open("temp_image.jpg", "wb") as f:
            f.write(image_file)
        canvas_obj.drawImage("temp_image.jpg", x, y, width=500, height=400)
        y -= 450
    canvas_obj.save()
    return "PPT successfully converted to PDF"
print(convert_ppt_to_pdf("example.pptx"))