使用 python 将 pdf 文件转换为 excel 与表中的图像

Question

The pdf files that I need to convert will have images in table. I want to convert the text as well as the images in tables of pdf to excel. Please suggest me suitable libraries for it.

Answer 1

You need to make a script that will read and detect character and excel cells. You may be able to do that with open-cv and the build-in character recognition tool, but I don't know how easy it would be. Another way I could think of is to make an ML model that will recognise excel sheets from an image. This is really hard though and requires a lot of experience.

Answer 2

You can use PikePDF to extract the images from the pdf:

from pikepdf import Pdf, PdfImage

filename = "sample.pdf"
example = Pdf.open(filename)

for i, page in enumerate(example.pages):
    for j, (name, raw_image) in enumerate(page.images.items()):
        image = PdfImage(raw_image)
        out = image.extract_to(fileprefix=f"{filename}-page{i:03}-img{j:03}")

After extracting the image you can then use OCR to convert the image to a table