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Commit dc152fe

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Update and rename main.py to pdf_utility.py
1 parent aa37806 commit dc152fe

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-17
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‎GUIScripts/PDF Utility Tool/main.py‎ renamed to ‎GUIScripts/PDF Utility Tool/pdf_utility.py‎

Lines changed: 66 additions & 17 deletions
Original file line numberDiff line numberDiff line change
@@ -4,7 +4,9 @@
44
import os
55
from PyPDF2 import PdfFileReader, PdfFileWriter
66

7+
## Helper Functions
78

9+
### Get PDF details in the window
810
def extract_information(pdf_path):
911
new_window = tk.Toplevel(root)
1012
new_window.title(pdf_path)
@@ -27,57 +29,80 @@ def extract_information(pdf_path):
2729
new_label = tk.Label(new_window, text=txt)
2830
new_label.place(x=10, y=10)
2931

30-
32+
# Read a pdf then create a new pdf with each page rotated
3133
def rotate_pages(pdf_path):
34+
35+
# Output file object
3236
pdf_writer = PdfFileWriter()
3337
pdf_reader = PdfFileReader(pdf_path)
38+
39+
# Copy each page to the output file object
3440
for i in range(pdf_reader.getNumPages()):
3541
pdf_writer.addPage(pdf_reader.getPage(i).rotateClockwise(90))
3642

43+
# Export the object in a pdf file
3744
with open("./rotate_pages.pdf", "wb") as fh:
3845
pdf_writer.write(fh)
3946

40-
47+
# Read two pdfs and merge them into one
4148
def merge_pdfs(pdfA, pdfB):
49+
50+
# Reading file objects of both pdfs
4251
pdfA_obj = PdfFileReader(pdfA, strict=False)
4352
pdfB_obj = PdfFileReader(pdfB, strict=False)
53+
54+
# Object to store merged pdf
4455
pdf_merge = PdfFileWriter()
4556

57+
# Get all the pages from pdfA to writer object
4658
for pgNum in range(pdfA_obj.numPages):
4759
pg = pdfA_obj.getPage(pgNum)
4860
pdf_merge.addPage(pg)
4961

62+
# Get all the pages from pdfB to writer object
5063
for pgNum in range(pdfB_obj.numPages):
5164
pg = pdfB_obj.getPage(pgNum)
5265
pdf_merge.addPage(pg)
5366

5467
# Write out the merged PDF
55-
5668
fileObj = open(".\merged_pdf.pdf", "wb")
5769
pdf_merge.write(fileObj)
70+
71+
#Display confirmation message
5872
info_label.configure(text=f"File Saved at : {os.getcwd()}\merged_pdf.pdf")
5973

6074

75+
# Split one pdf in two different pdfs
6176
def pdf_split(path, ranges):
77+
78+
# Read original pdf
6279
pdf = PdfFileReader(path, strict=False)
80+
81+
# Writer obeject for pdf
6382
pdf_writer = PdfFileWriter()
6483

84+
# Get all the pages upto the provided page number
6585
for page in range(int(ranges)):
6686
pdf_writer.addPage(pdf.getPage(page))
87+
88+
# Export the object to pdf file for the first part of the splitted pdf
6789
with open("./SplitA.pdf", "wb") as output_pdf:
6890
pdf_writer.write(output_pdf)
6991

92+
# Same steps for the second part of the pdf.
7093
pdf_writer = PdfFileWriter()
7194
for page in range(int(ranges), pdf.getNumPages()):
7295
pdf_writer.addPage(pdf.getPage(page))
7396
with open("./SplitB.pdf", "wb") as output_pdf:
7497
pdf_writer.write(output_pdf)
7598

76-
99+
# Overlay water mark on a pdf (watermark should also be a pdf)
77100
def create_watermark(input_pdf, watermark):
101+
102+
# Get watermark page after reading the pdf
78103
watermark_obj = PdfFileReader(watermark, strict=False)
79104
watermark_page = watermark_obj.getPage(0)
80-
105+
81106
pdf_reader = PdfFileReader(input_pdf, strict=False)
82107
pdf_writer = PdfFileWriter()
83108

@@ -86,46 +111,59 @@ def create_watermark(input_pdf, watermark):
86111
page = pdf_reader.getPage(page)
87112
page.mergePage(watermark_page)
88113
pdf_writer.addPage(page)
89-
114+
115+
# Export the writer object to a pdf
90116
with open("./Watermarked.pdf", "wb") as out:
91117
pdf_writer.write(out)
92118
info_label.configure(text=f"Watermark set\nCheck : {os.getcwd()}")
93119

94-
120+
# Make a pdf password protected
95121
def add_encryption(input_pdf, password):
122+
123+
# Reader and writer objects
96124
pdf_writer = PdfFileWriter()
97125
pdf_reader = PdfFileReader(input_pdf, strict=False)
98126

127+
# Copy all the pages from the pdf to the writer object
99128
for page in range(pdf_reader.getNumPages()):
100129
pdf_writer.addPage(pdf_reader.getPage(page))
101-
130+
131+
# add encryption to a writer object
102132
pdf_writer.encrypt(user_pwd=password, owner_pwd=None, use_128bit=True)
133+
134+
# export the encrypted pdf
103135
f = open("./Encrypted.pdf", "wb")
104136
pdf_writer.write(f)
105137
info_label.configure(text=f"Password Set\nCheck : {os.getcwd()}")
106138

107139

140+
## Selection Functions
141+
142+
# Select file and call extract_information()
108143
def info():
109144
path = askopenfilename(title="Select File", filetypes=[("PDF Document", "*pdf")])
110-
extract_information(path)
145+
if path:
146+
extract_information(path)
111147

112148

149+
# Select file and call rotate_pages()
113150
def rotate():
114151
path = askopenfilename(title="Select File", filetypes=[("PDF Document", "*pdf")])
115-
rotate_pages(path)
116-
152+
ifpath:
153+
rotate_pages(path)
117154

155+
# Select two files and call merge_pdfs()
118156
def merge():
119157
path_A = askopenfilename(
120158
title="Select First File", filetypes=[("PDF Document", "*pdf")]
121159
)
122160
path_B = askopenfilename(
123161
title="Select Second File", filetypes=[("PDF Document", "*pdf")]
124162
)
163+
if all(path_A, path_B):
164+
merge_pdfs(path_A, path_B)
125165

126-
merge_pdfs(path_A, path_B)
127-
128-
166+
#Select file and get range and then call pdf_split
129167
def split():
130168
path = askopenfilename(title="Select File", filetypes=[("PDF Document", "*pdf")])
131169

@@ -135,6 +173,8 @@ def assign():
135173
newWindow.destroy()
136174

137175
if path:
176+
# Small windo basic tkinter setup
177+
# this window is responsible of creating a popup and ask user the required informationn
138178
newWindow = tk.Toplevel(root)
139179
newWindow.title("Enter Split Ranges")
140180
newWindow.geometry("400x200")
@@ -154,6 +194,7 @@ def assign():
154194
container.grid(row=2, column=0)
155195

156196

197+
# Select two files and call creat_watermark()
157198
def watermark():
158199
path = askopenfilename(title="Select File", filetypes=[("PDF Document", "*pdf")])
159200
pathW = askopenfilename(
@@ -172,6 +213,9 @@ def assign():
172213
newWindow.destroy()
173214

174215
if path:
216+
217+
# Small windo basic tkinter setup
218+
# this window is responsible of creating a popup and ask user the required informationn
175219
newWindow = tk.Toplevel(root)
176220
newWindow.title("Create Password")
177221
newWindow.geometry("400x200")
@@ -191,32 +235,36 @@ def assign():
191235
container.grid(row=1, column=0)
192236

193237

238+
# Basic root tkinter setup, geometry, title
194239
root = tk.Tk()
195240
root.geometry("800x600")
196241
root.wm_title("PDF Utility Tool")
197242
root.resizable(False, False)
198243
fontStyle = tkFont.Font(size=42)
199244
btnText = tkFont.Font(size=12)
200245

201-
246+
# Creating two rows and one column in the window
202247
root.columnconfigure(0, minsize=800)
203248
root.rowconfigure(0, minsize=200)
204249
root.rowconfigure(2, minsize=400)
205250

251+
# Title label
206252
label1 = tk.Label(
207253
text="PDF Utility Tool", font=fontStyle, borderwidth=2, relief="groove"
208254
)
209-
info_label = tk.Label(text="", font=btnText)
210-
211255

256+
# Information label shows the confirmation messages
257+
info_label = tk.Label(text="", font=btnText)
212258
label1.grid(row=0, column=0)
213259
info_label.place(x=200, y=150)
214260

261+
# Container to store all the function buttons
215262
container = tk.Frame(root)
216263

217264
container.columnconfigure([0, 1], minsize=300)
218265
container.rowconfigure([0, 1, 2], minsize=100)
219266

267+
# Button for evry function and custom command attribute to call the functions
220268
btn_merge = tk.Button(
221269
container,
222270
text="Merge",
@@ -279,6 +327,7 @@ def assign():
279327
)
280328

281329

330+
# Placing all the buttons in the grid setup
282331
btn_merge.grid(row=0, column=0)
283332
btn_rotate.grid(row=0, column=1)
284333
btn_split.grid(row=1, column=0)

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