Image_Converter.py

import tkinter as tk
from tkinter import filedialog
from tkinter import messagebox
from PIL import Image

root= tk.Tk()

canvas1 = tk.Canvas(root, width = 300, height = 320, bg = 'lightsteelblue2', relief = 'raised')
canvas1.pack()

label1 = tk.Label(root, text='File Conversion Tool', bg = 'lightsteelblue2')
label1.config(font=('helvetica', 20))
canvas1.create_window(150, 60, window=label1)

def getJPG():  
    global im1  
    import_file_path = filedialog.askopenfilename()
    im1 = Image.open(import_file_path)
    
def getPNG():  
    global im2  
    import_file_path = filedialog.askopenfilename()
    im2 = Image.open(import_file_path)

browseButton_JPG = tk.Button(text="      Import JPG File     ", command=getJPG, bg='royalblue', fg='white', font=('helvetica', 12, 'bold'))
canvas1.create_window(150, 130, window=browseButton_JPG)

browseButton_PNG = tk.Button(text="      Import PNG File     ", command=getJPG, bg='royalblue', fg='white', font=('helvetica', 12, 'bold'))
canvas1.create_window(150, 180, window=browseButton_PNG)

def convertToPNG():
    global im1  
    export_file_path = filedialog.asksaveasfilename(defaultextension='.png')
    im1.save(export_file_path)

def convertToJPG():
    global im2  
    export_file_path = filedialog.asksaveasfilename(defaultextension='.jpg')
    im2.save(export_file_path)

saveAsButton_PNG = tk.Button(text='Convert JPG to PNG', command=convertToPNG, bg='royalblue', fg='white', font=('helvetica', 12, 'bold'))
canvas1.create_window(150, 230, window=saveAsButton_PNG)

saveAsButton_JPG = tk.Button(text='Convert PNG to JPG', command=convertToJPG, bg='royalblue', fg='white', font=('helvetica', 12, 'bold'))
canvas1.create_window(150, 280, window=saveAsButton_JPG)


root.mainloop()