def open_page_web():
flag = check_new_path()
if flag:
try:
page_num_str = str(lb.get(lb.curselection()))
except Exception:
alerm_msg(warning_title, warning_chose_page_msg)
else:
global check_dirpath
check_dirpath = os.path.join(get_dirpath(new_filepath),
'web_check')
if not os.path.exists(check_dirpath):
os.mkdir(check_dirpath)
check_file_path = os.path.join(check_dirpath,
page_num_str + '.pdf')
try:
pdf_reader = pdfreader(new_filepath)
pdf_writer = pdfwriter()
pdf_writer.addPage(pdf_reader.getPage(int(page_num_str) - 1))
with open(check_file_path, 'wb') as fw:
pdf_writer.write(fw)
except PdfReadError:
alerm_msg(error_title, error_file_msg)
else:
add_web_prefix_file = WEB_TITLE + check_file_path
new = 0
webbrowser.open(add_web_prefix_file, new=new)
elif origin_filepath != '':
alerm_msg(warning_title, warning_safe_msg)
def rotate_page(rotate_pages, rotate_direction, file_path):
if rotate_direction == '90':
rotate_degree = 90
elif rotate_direction == '270':
rotate_degree = 270
elif rotate_direction == '180':
rotate_degree = 180
else:
print('请输入规定内的翻转角度')
try:
reader_obj = pdfreader(file_path)
writer_obj = pdfwriter()
total_pages = reader_obj.getNumPages()
for rpage in range(total_pages):
if rpage + 1 in rotate_pages:
page_num_obj = reader_obj.getPage(rpage).rotateClockwise(
rotate_degree)
else:
page_num_obj = reader_obj.getPage(rpage)
writer_obj.addPage(page_num_obj)
with open(file_path, 'wb') as fw:
writer_obj.write(fw)
except PdfReadError:
alerm_msg(error_title, error_file_msg)
return 'file_error'
else:
alerm_msg(reminder_title, reminder_rotate_finish_msg)
def pdf_add_bookmark(self, obj, pdf_names):
reader_obj = pdfreader(obj.file_name)
pdf_writer = pdfwriter()
pdf_writer.cloneDocumentFromReader(reader_obj)
for i, v in enumerate(pdf_names):
pdf_writer.addBookmark(u'' + v.split('\\')[-1], i)
with open(obj.file_name, 'wb') as font:
pdf_writer.write(font)
def set_pdf_pages(filepath):
if filepath != '':
page_nums = '__'
try:
page_nums = pdfreader(filepath).getNumPages()
except PdfReadError:
page_nums = 0
finally:
pagetextvar.set('共 ' + str(page_nums) + ' 页')
if page_nums == 0:
alerm_msg(warning_title, warning_file_msg)
if page_nums > 0:
global total_page_nums
total_page_nums = page_nums
##In the following line of codes, we are opening the "meetingminutes.pdf" pdf file and
##referring to the file as "myfile", and this file is being opened using read binary method
##because a pdf document has a binary format.
##"myfile" specifically, represents the bytes of information included in the
##"meetingminutes.pdf" pdf document.
with open(r'C:\Users\bilal\Desktop\Python PDF Tutorial\meetingminutes.pdf',
'rb') as myfile:
##Code Explainer:
##In the following line of code, we are passing the information stored into the "myfile" variable into
##the pdfreader class. This pdfreader class will then return a pdfreaderobject, upon which we will be
##able to perform various functions.
##In simple words, this pdfreaderobject represents this "meetingminutes.pdf"
pdfreaderobject = pdfreader(myfile)
##
Number_of_pages = pdfreaderobject.getNumPages()
print(f'The number of pages are\n: \n{Number_of_pages}')
global_information = pdfreaderobject.getDocumentInfo()
print(f"""
The author of this pdf is: {global_information.author}
The creator of this pdf is: {global_information.creator}
The producer of this pdf is: {global_information.producer}
The subject of this pdf is: {global_information.subject}
The title of this pdf is: {global_information.title}
""")
print(f"This pdf is encrypted: {pdfreaderobject.isEncrypted}")
from PyPDF2 import PdfFileReader as pdfreader
from PyPDF2 import PdfFileWriter as pdfwriter
####
####Code Explainer:
####This is creating a pdfwriter object which is going to represent the new pdf document which we are
####trying to create. We are calling this pdfwriter object as pdfWriter in our code below.
##
pdfwriterobject = pdfwriter()
####
####Code Explainer:
####Opening up the file pdf document in read binary mode and then passing the read_1 stream into the
####pdfreader reader class to return the pdf.
##
with open(r'C:\Users\bilal\Desktop\Python PDF Tutorial\meetingminutes.pdf',
'rb') as read_1:
pdfreaderobject = pdfreader(read_1)
Number_of_pages = pdfreaderobject.getNumPages()
for i in range(Number_of_pages):
page = pdfreaderobject.getPage(i)
##
####Code Explainer:
####In this line of code, we are essentially (for each iteration) adding the page object that we have
####created in the line above and using the addPage method to add that page into our pdfwriterobject.
####Since we are iterating through each page in our initial pdf document, we are basically adding
####each page in that document into this pdfwriterobject.
####
pdfwriterobject.addPage(page)
##
####Code Explainer:
####In these lines of code, we are creating a new pdf document called "part3.pdf" and opening it up in
####the "wb" mode(or in the other words, write binary mode.)