在python中，只有最后一个图形被粘贴到pdf文件中。

from PyPDF2 import PdfFileWriter, PdfFileReader
from PIL import Image

def paste_images_to_pdf(images, output_path):
    pdf_writer = PdfFileWriter()

    for image_path in images:
        image = Image.open(image_path)
        width, height = image.size

        pdf_page = pdf_writer.addBlankPage(width=width, height=height)
        pdf_page.mergeScaledTranslatedPage(image_page, scale=1, tx=0, ty=0)

    with open(output_path, 'wb') as output_file:
        pdf_writer.write(output_file)

# 使用示例
images = ['image1.png', 'image2.png', 'image3.png']
output_path = 'output.pdf'
paste_images_to_pdf(images, output_path)