将多页PDF文件拆分为使用Python的多个PDF文件？

Question

我想使用一个多页PDF文件，并每页创建单独的PDF文件。

我已经下载了 reportlab 并浏览了文档，但似乎旨在PDF生成。我还没有看到有关处理PDF文件本身的任何信息。

在Python中有一种简单的方法吗？

Answer 1

from PyPDF2 import PdfWriter, PdfReader

inputpdf = PdfReader(open("document.pdf", "rb"))

for i in range(len(inputpdf.pages)):
    output = PdfWriter()
    output.add_page(inputpdf.pages[i])
    with open("document-page%s.pdf" % i, "wb") as outputStream:
        output.write(outputStream)

ETC。

Answer 2

更新了PYPDF（3.0.0）最新版本的解决方案，并分配一系列页面。

from PyPDF2 import PdfReader, PdfWriter

file_name = r'c:\temp\junk.pdf'
pages = (121, 130)

reader = PdfReader(file_name)
writer = PdfWriter()
page_range = range(pages[0], pages[1] + 1)

for page_num, page in enumerate(reader.pages, 1):
    if page_num in page_range:
        writer.add_page(page)

with open(f'{file_name}_page_{pages[0]}-{pages[1]}.pdf', 'wb') as out:
    writer.write(out)

Answer 3

我在这里错过了一个解决方案，您将PDF分为由所有页面组成的两个部分，因此如果有人在寻找相同的问题，我将附加解决方案：

from PyPDF2 import PdfFileWriter, PdfFileReader

def split_pdf_to_two(filename,page_number):
    pdf_reader = PdfFileReader(open(filename, "rb"))
    try:
        assert page_number < pdf_reader.numPages
        pdf_writer1 = PdfFileWriter()
        pdf_writer2 = PdfFileWriter()

        for page in range(page_number):
            pdf_writer1.addPage(pdf_reader.getPage(page))

        for page in range(page_number,pdf_reader.getNumPages()):
            pdf_writer2.addPage(pdf_reader.getPage(page))

        with open("part1.pdf", 'wb') as file1:
            pdf_writer1.write(file1)

        with open("part2.pdf", 'wb') as file2:
            pdf_writer2.write(file2)

    except AssertionError as e:
        print("Error: The PDF you are cutting has less pages than you want to cut!")

Answer 4

PYPDF2软件包使您能够将单个PDF拆分为多个PDF。

import os
from PyPDF2 import PdfFileReader, PdfFileWriter

pdf = PdfFileReader(path)
for page in range(pdf.getNumPages()):
    pdf_writer = PdfFileWriter()
    pdf_writer.addPage(pdf.getPage(page))

    output_filename = '{}_page_{}.pdf'.format(fname, page+1)

    with open(output_filename, 'wb') as out:
        pdf_writer.write(out)

    print('Created: {}'.format(output_filename))

PYPDF2 3.0.0的更改

import os
from PyPDF2 import PdfReader, PdfWriter
path = 'pdf_forms/myform.pdf'
fname = 'fname'

pdf = PdfReader(path)
for page in range(len(pdf.pages)):
    pdf_writer = PdfWriter()
    pdf_writer.add_page(pdf.pages[page])

    output_filename =         
     'pdf_forms/splitted/{}_page_{}.pdf'.format(fname, page+1)

    with open(output_filename, 'wb') as out:
        pdf_writer.write(out)

    print('Created: {}'.format(output_filename))

来源： https://www.blog.pythonlibrary.org/2018/04/11/splitting-and-merging-p.-merging-pdfs-with-python/

Answer 5

import fitz

src = fitz.open("source.pdf")
for page in src:
    tar = fitz.open()  # output PDF for 1 page
    # copy over current page
    tar.insert_pdf(src, from_page=page.number, to_page=page.number)
    tar.save(f"page-{page.number}.pdf")
    tar.close()

Answer 6

pypdf2用于拆分PDF的较早答案不再使用最新版本更新。作者建议改用pypdf，此版本的pypdf2 == 3.0.1将是pypdf2的最后版本。该功能需要修改如下：

import os
from PyPDF2 import PdfReader, PdfWriter

def split_pdfs(input_file_path):
    inputpdf = PdfReader(open(input_file_path, "rb"))

    out_paths = []
    if not os.path.exists("outputs"):
        os.makedirs("outputs")

    for i, page in enumerate(inputpdf.pages):
        output = PdfWriter()
        output.add_page(page)

        out_file_path = f"outputs/{input_file_path[:-4]}_{i}.pdf"
        with open(out_file_path, "wb") as output_stream:
            output.write(output_stream)

        out_paths.append(out_file_path)
    return out_paths

注意：相同的功能也将与pypdf一起使用。导入pdfreader和pdfwriter来自pypdf而不是pypdf2。

Answer 7

我知道该代码与Python无关，但是我觉得自己要张贴这件R代码，该R代码简单，灵活并且可以工作。 R中的PDFTOOLS包在将PDF拆分时令人惊讶。

library(pdftools) #Rpackage
pdf_subset('D:\\file\\20.02.20\\22 GT 2017.pdf',
           pages = 1:51, output = "subset.pdf")

Answer 8

# pip install pymupdf     

import fitz  # Importing the fitz library

# specify the path of the PDF file
pdf_path = "2021.pdf"

# open the PDF
try:
    pdf = fitz.open(pdf_path)
except FileNotFoundError:
    print("File not found")

• 导入fitz ：fitz库用于使用PDF文件和图像。
• 打开PDF ：脚本尝试打开位于“ 2021.pdf”的PDF文件。如果该文件在指定的路径上不存在，则将捕获filenotfounderror并打印“未找到文件”。

# iterate over the pages starting from the 6th page
for i, page in enumerate(pdf[6:], start=6):
    try:
        # render the page as a JPEG image
        pix = page.get_pixmap(alpha=False)
        # save the image
        pix.writeJPG(f"page_{i+1}.jpg")
    except Exception as e:
        print(e)

• 迭代页面上的页面：脚本从第六页开始在PDF的页面上迭代。 Python使用基于零的索引，因此pdf [6：]是指第七页开始。
• 渲染页面为图像：对于每个页面，它将页面转换为pixmap，这是页面的图像表示。 alpha = false参数用于指定图像不应包括透明度。
• 保存图像：每个页面图像都保存为JPEG文件。生成文件名以反映页码（page_ {i+1} .jpg）。枚举从6开始，但我们将其增加1，以反映从7开始的实际页码。

# close the PDF
print("Successful")
pdf.close()

Answer 9

from PyPDF2 import PdfFileReader, PdfFileWriter
import os
import sys
import glob
abspath = os.path.abspath(__file__)
dname = os.path.dirname(abspath)
os.chdir(dname)

if getattr(sys, 'frozen', False):
    _location_ = os.path.dirname(os.path.realpath(sys.executable))
elif __file__:
    _location_ = os.path.realpath(
    os.path.join(os.getcwd(), os.path.dirname(__file__)))

for file in glob.glob(__location__ + "/*.pdf"):
    if file.endswith('.pdf'):
        pdf_file = open(os.path.join(__location__, file), 'rb')
        pdf_reader = PdfFileReader(pdf_file)
        
pageNumbers = pdf_reader.getNumPages()

for i in range (pageNumbers):
    pdf_writer = PdfFileWriter()
    pdf_writer.addPage(pdf_reader.getPage(i))
    split_motive = open('Page ' + str(i+1) + '.pdf', 'wb')
    pdf_writer.write(split_motive)
    split_motive.close()

pdf_file.close()

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