Create a tool to split and merge PDFs

Here’s a complete Python tool using PyPDF2 and Tkinter to provide a basic graphical user interface (GUI) for splitting and merging PDFs. This script lets users:

• Split a PDF into individual pages or a page range.

• Merge multiple PDFs into one file.

python
CopyEdit
import tkinter as tk
from tkinter import filedialog, messagebox
import PyPDF2
import os

class PDFTool:
    def __init__(self, master):
        self.master = master
        master.title("PDF Split and Merge Tool")

        # Buttons
        self.split_button = tk.Button(master, text="Split PDF", width=20, command=self.split_pdf)
        self.split_button.pack(pady=10)

        self.merge_button = tk.Button(master, text="Merge PDFs", width=20, command=self.merge_pdfs)
        self.merge_button.pack(pady=10)

    def split_pdf(self):
        file_path = filedialog.askopenfilename(title="Select PDF to Split", filetypes=[("PDF Files", "*.pdf")])
        if not file_path:
            return

        pdf_reader = PyPDF2.PdfReader(file_path)
        total_pages = len(pdf_reader.pages)

        range_window = tk.Toplevel(self.master)
        range_window.title("Enter Page Range")

        tk.Label(range_window, text=f"Enter page range (1-{total_pages}):").pack()
        page_range_entry = tk.Entry(range_window)
        page_range_entry.pack()

        def process_split():
            try:
                range_text = page_range_entry.get()
                if '-' in range_text:
                    start, end = map(int, range_text.split('-'))
                else:
                    start = end = int(range_text)

                if start < 1 or end > total_pages or start > end:
                    raise ValueError

                output_path = filedialog.asksaveasfilename(defaultextension=".pdf",
                                                           filetypes=[("PDF Files", "*.pdf")],
                                                           title="Save Split PDF As")
                if not output_path:
                    return

                pdf_writer = PyPDF2.PdfWriter()
                for i in range(start - 1, end):
                    pdf_writer.add_page(pdf_reader.pages[i])

                with open(output_path, "wb") as out_file:
                    pdf_writer.write(out_file)

                messagebox.showinfo("Success", f"PDF split successfully and saved to {output_path}")
                range_window.destroy()

            except Exception:
                messagebox.showerror("Error", "Invalid input. Please enter a valid page range like 1-3 or 2.")

        tk.Button(range_window, text="Split", command=process_split).pack(pady=5)

    def merge_pdfs(self):
        file_paths = filedialog.askopenfilenames(title="Select PDFs to Merge", filetypes=[("PDF Files", "*.pdf")])
        if not file_paths:
            return

        output_path = filedialog.asksaveasfilename(defaultextension=".pdf",
                                                   filetypes=[("PDF Files", "*.pdf")],
                                                   title="Save Merged PDF As")
        if not output_path:
            return

        pdf_writer = PyPDF2.PdfWriter()
        try:
            for path in file_paths:
                pdf_reader = PyPDF2.PdfReader(path)
                for page in pdf_reader.pages:
                    pdf_writer.add_page(page)

            with open(output_path, "wb") as out_file:
                pdf_writer.write(out_file)

            messagebox.showinfo("Success", f"PDFs merged successfully and saved to {output_path}")
        except Exception as e:
            messagebox.showerror("Error", f"Failed to merge PDFs: {str(e)}")

if __name__ == "__main__":
    root = tk.Tk()
    tool = PDFTool(root)
    root.mainloop()

Requirements:

Install the required library:

bash
CopyEdit
pip install PyPDF2

Features:

• GUI for user-friendly interaction.

• Page range input for splitting.

• Multi-select for merging.

Let me know if you want a command-line version, web-based version, or additional features like password protection.