无法读取PDF文件和提取文本

Question

def input_pdf_text（上传的文件）：

# Open the PDF file in binary mode
with uploaded_file as file:

    # Create a PdfReader object to read the PDF

    reader = pdf.PdfReader(file)

    text=""

循环浏览每个页面并提取文本

    for page in reader(len(reader.pages)):

        page=reader.pages[page]

        text+= str(page.extract_text())

    return text

假设读取上传的文件并提取文本

Answer 1

在循环页面时存在语法错误和格式问题，并且误用

reader(len(reader.pages)):

，因为循环页面的语法不正确。

使用 pip 安装 PyPDF2：

pip install PyPDF2

那么这里有一个代码示例

导入 PyPDF2

def input_pdf_text(uploaded_file):
    # Ensure the file is opened in binary mode if it isn't already
    if uploaded_file.mode != 'rb':
        uploaded_file = open(uploaded_file, 'rb')

    # Create a PdfReader object to read the PDF
    reader = PyPDF2.PdfReader(uploaded_file)
    text = ""

    # Loop through each page and extract text
    for page in reader.pages:
        # Extract text from each page and concatenate it
        if page.extract_text():
            text += page.extract_text()

    # Close the file if opened
    if uploaded_file.mode == 'rb':
        uploaded_file.close()

    return text

要使用它，只需：

# Example of using the function with a file path
file_path = 'path_to_your_pdf_file.pdf'
with open(file_path, 'rb') as file:
    pdf_text = input_pdf_text(file)
print(pdf_text)