Hello, I would like to offer you some improvements

class ShowPdf(threading.Thread, Frame):

img_object_li = []

def __init__(self, parent, width=1200, height=600, pdf_location="", bar=True, load="after"):
    threading.Thread.__init__(self)
    Frame.__init__(self, parent, width=width, height=height, bg="white")

    self.__flagKill = False
    self.__flagRefresh = True

    self.pdf_location = pdf_location
    self.bar = bar
    self.load = load

    scroll_y = Scrollbar(self, orient="vertical")
    scroll_x = Scrollbar(self, orient="horizontal")

    scroll_x.pack(fill="x", side="bottom")
    scroll_y.pack(fill="y", side="right")

    self.percentage_load = StringVar()

    if self.bar == True and self.load == "after":
        self.display_msg = Label(self, textvariable=self.percentage_load)
        self.display_msg.pack(pady=10)

        self.loading = Progressbar(self, orient=HORIZONTAL, length=100, mode='determinate')
        self.loading.pack(side=TOP, fill=X)

    self.text = Text(self, yscrollcommand=scroll_y.set, xscrollcommand=scroll_x.set, width=width, height=height)
    self.text.pack(side="left")

    scroll_x.config(command=self.text.xview)
    scroll_y.config(command=self.text.yview)

def run(self):
    while self.__flagKill is False:
        if self.__flagRefresh is True:
            precentage_dicide = 0

            with fitz.open(self.pdf_location) as open_pdf:
                for page in open_pdf:
                    pix = page.getPixmap()
                    pix1 = fitz.Pixmap(pix, 0) if pix.alpha else pix
                    img = pix1.getImageData("ppm")
                    timg = PhotoImage(data=img)
                    self.img_object_li.append(timg)
                    if self.bar == True and self.load == "after":
                        precentage_dicide = precentage_dicide + 1
                        percentage_view = (float(precentage_dicide)/float(len(open_pdf))*float(100))
                        self.loading['value'] = percentage_view
                        self.percentage_load.set(f"Please wait!, your pdf is loading {int(math.floor(percentage_view))}%")
                if self.bar == True and self.load == "after":
                    self.loading.pack_forget()
                    self.display_msg.pack_forget()

            index = 1.0
            self.text.configure(state='normal')
            for i in self.img_object_li:
                self.text.image_create(index, image=i)
                self.text.insert(index, "\n\n")
                self.text.image = i  #Very important, otherwise the thread gets blocked
                index += 1
            self.text.configure(state="disabled")
            self.img_object_li.clear()  #Avoid duplicates
            self.__flagRefresh = False

def refresh(self):
    self.__flagRefresh = True

def stop(self):
    self.__flagKill = True

If you want to add a pdf afterwards, you have to make these modifications:

            self.text.configure(state='normal')
            for i in self.img_object_li:
                self.text.image_create(END, image=i)
                self.text.insert(END, "\n\n")
                self.text.image = i  #Very important, otherwise the thread gets blocked
            self.text.configure(state="disabled")
            self.img_object_li.clear()  #Avoid duplicates
            self.__flagRefresh = False

def add_pdf(self, pdf_location):
    self.pdf_location = pdf_location
    self.__flagRefresh = True

Example of use:

self.pdfView = obdoTkShowPDF(self, pdf_location=pathPDF, width=50, height=30) self.pdfView.grid(row=1, column=1) self.pdfView.start()

do stuff

self.pdfView.stop() self.pdfView.join()

Roshanpaswan / tkPDFViewer

Imrpovement #5

do stuff