python批量提取PDF电子发票信息
时间: 2024-10-01 21:09:21 浏览: 176
在Python中,我们可以使用一些库来批量提取PDF电子发票的信息,比如PyPDF2库用于处理PDF文件,结合BeautifulSoup或正则表达式来进行文本解析。以下是大致步骤:
1. 安装所需库:
```
pip install PyPDF2 beautifulsoup4 requests
```
2. 使用PyPDF2读取PDF:
```python
import PyPDF2
def read_pdf(pdf_path):
with open(pdf_path, 'rb') as file:
reader = PyPDF2.PdfFileReader(file)
info = {}
for page_num in range(reader.numPages):
text = reader.getPage(page_num).extractText()
# 这里可以进一步处理text,找到关键信息的位置
pass
return info
```
3. 结合BeautifulSoup解析文本:
```python
from bs4 import BeautifulSoup
def parse_text(text):
soup = BeautifulSoup(text, 'lxml')
invoice_info = {} # 假设发票信息都在特定标签内,如`<table>`, `<div>`
# 通过CSS选择器或XPath找出关键信息
invoice_info['invoice_number'] = soup.find('span', class_='invoice_number').get_text()
# ... 其他字段类似
return invoice_info
```
4. 批量处理PDF文件:
```python
pdf_paths = ['file1.pdf', 'file2.pdf', 'file3.pdf']
extracted_info = []
for path in pdf_paths:
raw_text = read_pdf(path)
parsed_info = parse_text(raw_text)
extracted_info.append(parsed_info)
print(extracted_info)
```
请注意,实际操作中需要针对每个PDF的具体结构调整提取策略,因为不是所有的发票格式都完全一致。
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