使用Python实现提取PDF文件中指定页面的内容

pip install pymupdf wxPython

import fitz
import wx

class PDFExtractor(wx.Frame):
    def __init__(self, parent, title):
        super(PDFExtractor, self).__init__(parent, title=title, size=(400, 200))
        
        self.panel = wx.Panel(self)
        self.file_picker = wx.FilePickerCtrl(self.panel, style=wx.FLP_DEFAULT_STYLE | wx.FLP_USE_TEXTCTRL)
        self.start_page_input = wx.TextCtrl(self.panel)
        self.end_page_input = wx.TextCtrl(self.panel)
        self.extract_button = wx.Button(self.panel, label="Extract", size=(100, 30))
        
        self.extract_button.Bind(wx.EVT_BUTTON, self.extract_pages)
        
        self.sizer = wx.BoxSizer(wx.VERTICAL)
        self.sizer.Add(self.file_picker, 0, wx.EXPAND|wx.ALL, 10)
        self.sizer.Add(wx.StaticText(self.panel, label="Start Page:"), 0, wx.LEFT|wx.TOP, 10)
        self.sizer.Add(self.start_page_input, 0, wx.EXPAND|wx.ALL, 10)
        self.sizer.Add(wx.StaticText(self.panel, label="End Page:"), 0, wx.LEFT|wx.TOP, 10)
        self.sizer.Add(self.end_page_input, 0, wx.EXPAND|wx.ALL, 10)
        self.sizer.Add(self.extract_button, 0, wx.ALIGN_CENTER|wx.ALL, 10)
        
        self.panel.SetSizerAndFit(self.sizer)
        self.Show()
    
    def extract_pages(self, event):
        file_path = self.file_picker.GetPath()
        start_page = int(self.start_page_input.GetValue())
        end_page = int(self.end_page_input.GetValue())
        
        doc = fitz.open(file_path)
        output_doc = fitz.open()
        
        for page_num in range(start_page-1, end_page):
            output_doc.insert_pdf(doc, from_page=page_num, to_page=page_num)
        
        output_path = file_path.replace(".pdf", "_extracted.pdf")
        output_doc.save(output_path)
        output_doc.close()
        doc.close()
        
        wx.MessageBox("Extraction complete!", "Success", wx.OK | wx.ICON_INFORMATION)
        

app = wx.App()
PDFExtractor(None, title="PDF Extractor")
app.MainLoop()