使用Python从PDF中提取文本、表格和图像可以通过以下步骤实现:
pip install PyPDF2
。import PyPDF2
def extract_text_from_pdf(file_path):
with open(file_path, 'rb') as file:
pdf = PyPDF2.PdfFileReader(file)
text = ''
for page_num in range(pdf.numPages):
page = pdf.getPage(page_num)
text += page.extractText()
return text
import tabula
def extract_tables_from_pdf(file_path):
tables = tabula.read_pdf(file_path, pages='all')
return tables
from PIL import Image
import PyPDF2
def extract_images_from_pdf(file_path):
images = []
with open(file_path, 'rb') as file:
pdf = PyPDF2.PdfFileReader(file)
for page_num in range(pdf.numPages):
page = pdf.getPage(page_num)
if '/XObject' in page['/Resources']:
x_objects = page['/Resources']['/XObject'].getObject()
for obj in x_objects:
if x_objects[obj]['/Subtype'] == '/Image':
image = x_objects[obj]
if '/Filter' in image:
if image['/Filter'] == '/DCTDecode':
img = Image.open(io.BytesIO(image._data))
images.append(img)
return images
以上是使用Python从PDF中提取文本、表格和图像的基本方法。根据具体的需求和PDF的结构,可能需要结合不同的库和方法进行处理。
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