image_to_PDF.py

from tkinter import *
from tkinter import filedialog
from ttkthemes import themed_tk as tk
from PIL import Image
from tkinter import messagebox

def add_images():
    images = filedialog.askopenfilenames(title='Select Images', filetypes=(('PNG files', '*.png'), ('JPG files', '*.jpg'), ('JPEG files', '*.jpeg')))
    for image in images:
        file_box.insert(END, image)
    
def delete():
    for item in reversed(file_box.curselection()):
        file_box.delete(item)
    

def save_as_pdf():
    result = filedialog.asksaveasfilename(filetypes=(('PDF files', '*.pdf'), ))
    if result.endswith('.pdf'):
        pass
    else:
        result = result + '.pdf'
    if result:
        list_of_addresses = []
        im_list = []
        file_box.select_set(0, END)
        for item in file_box.curselection():
            list_of_addresses.append(str(file_box.get(item)))
        for i in range(len(list_of_addresses)):
            im = Image.open(list_of_addresses[i])
            if im.mode == 'RGBA':
                im = im.convert('RGB')
            im_list.append(im)
               
        im_list[0].save(result, "PDF", resolution = 100.0, save_all = True, append_images = im_list[1:])

        messagebox.showinfo("PDF Successfully Generated", "Your PDF was successfully generated.")
    

screen = tk.ThemedTk()
screen.get_themes()
screen.set_theme("breeze")

width_of_window = 600
height_of_window = 440
screen_width = screen.winfo_screenwidth()
screen_height = screen.winfo_screenheight()
x_coordinate = int((screen_width/2) - (width_of_window/2))
y_coordinate = int((screen_height/2) - (height_of_window/2))
screen.geometry("{}x{}+{}+{}".format(width_of_window, height_of_window, x_coordinate, y_coordinate))

screen.title('Image to PDF Converter')
screen.iconbitmap('PDF-Document.ico')
screen.config(background='#435B6C')

list_frame = Frame(screen)
list_frame.config(background='#435B6C')
my_scrollbar = Scrollbar(list_frame, orient=VERTICAL)
file_box = Listbox(list_frame, width=400, yscrollcommand=my_scrollbar.set, selectmode=MULTIPLE)
my_scrollbar.config(command=file_box.yview)
my_scrollbar.pack(side=RIGHT, fill=Y, pady=15)
list_frame.pack(padx=30)
file_box.pack(pady=15)

button_select = Button(screen, text='Select Files', command=add_images, background='#1D9151', fg='black', font=('Helvetica', 16), borderwidth=5)
button_select.pack(pady=15)

button_delete = Button(screen, text='Delete File', command=delete, background='#1D9151', fg='black', font=('Helvetica', 12))
button_delete.pack(pady=15)

button_convert = Button(screen, text='CONVERT TO PDF', command=save_as_pdf, background='#1DB954', fg='black', font=('Helvetica', 18, 'bold'), borderwidth=6)
button_convert.pack(pady=15)

screen.mainloop()