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要在使用 reportlab 构建的报告中插入 image.pdf,一种方法是首先使用 Wand 将 image.pdf 转换为 image.jpg:

from wand.image import Image as wandImage
from reportlab.platypus import Image

....

with wandImage(filename='input.pdf') as img:
                img.crop(42, 64, 552, 677) # (left, top, width, height)
                img.save(filename = "output.jpg")

img = Image("output.jpg", 175.0*mm, 30.0*mm) 
img.hAlign = 'CENTER'
rapport.append(img)

...

保存一个 file.jpg 并在之后打开这个文件可能看起来不太优雅。是否可以在没有保存步骤的情况下直接使用结果?例如这个白痴代码(不起作用!):

from wand.image import Image as wandImage
from reportlab.platypus import Image

....
with wandImage(filename='input.pdf') as img:
            img.crop(42, 64, 552, 677) # (left, top, width, height)
            img2 = img.convert('jpeg')
            img3 = Image(img2, 175.0*mm, 30.0*mm)  # 2508px × 430px
            img3.hAlign = 'CENTER'
            rapport.append(img3)

...
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