是否有可能,使用Python,合并单独的PDF文件?
假设是这样,我需要进一步扩展它。我希望循环通过目录中的文件夹,并重复此过程。
我可能是得过其实了,但是否可以排除每个pdf文件中包含的一页(我的报告生成总是创建一个额外的空白页)。
是否有可能,使用Python,合并单独的PDF文件?
假设是这样,我需要进一步扩展它。我希望循环通过目录中的文件夹,并重复此过程。
我可能是得过其实了,但是否可以排除每个pdf文件中包含的一页(我的报告生成总是创建一个额外的空白页)。
当前回答
它是可能的,使用Python,合并单独的PDF文件?
Yes.
下面的例子将一个文件夹中的所有文件合并为一个新的PDF文件:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from argparse import ArgumentParser
from glob import glob
from pyPdf import PdfFileReader, PdfFileWriter
import os
def merge(path, output_filename):
output = PdfFileWriter()
for pdffile in glob(path + os.sep + '*.pdf'):
if pdffile == output_filename:
continue
print("Parse '%s'" % pdffile)
document = PdfFileReader(open(pdffile, 'rb'))
for i in range(document.getNumPages()):
output.addPage(document.getPage(i))
print("Start writing '%s'" % output_filename)
with open(output_filename, "wb") as f:
output.write(f)
if __name__ == "__main__":
parser = ArgumentParser()
# Add more options if you like
parser.add_argument("-o", "--output",
dest="output_filename",
default="merged.pdf",
help="write merged PDF to FILE",
metavar="FILE")
parser.add_argument("-p", "--path",
dest="path",
default=".",
help="path of source PDF files")
args = parser.parse_args()
merge(args.path, args.output_filename)
其他回答
使用Pypdf或其后续版本PyPDF2:
作为PDF工具包构建的Pure-Python库。它能够: 逐页拆分文档, 逐页合并文件,
(以及更多)
下面是一个适用于这两个版本的示例程序。
#!/usr/bin/env python
import sys
try:
from PyPDF2 import PdfFileReader, PdfFileWriter
except ImportError:
from pyPdf import PdfFileReader, PdfFileWriter
def pdf_cat(input_files, output_stream):
input_streams = []
try:
# First open all the files, then produce the output file, and
# finally close the input files. This is necessary because
# the data isn't read from the input files until the write
# operation. Thanks to
# https://stackoverflow.com/questions/6773631/problem-with-closing-python-pypdf-writing-getting-a-valueerror-i-o-operation/6773733#6773733
for input_file in input_files:
input_streams.append(open(input_file, 'rb'))
writer = PdfFileWriter()
for reader in map(PdfFileReader, input_streams):
for n in range(reader.getNumPages()):
writer.addPage(reader.getPage(n))
writer.write(output_stream)
finally:
for f in input_streams:
f.close()
output_stream.close()
if __name__ == '__main__':
if sys.platform == "win32":
import os, msvcrt
msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
pdf_cat(sys.argv[1:], sys.stdout)
http://pieceofpy.com/2009/03/05/concatenating-pdf-with-python/提供了一个解决方案。
类似的:
from pyPdf import PdfFileWriter, PdfFileReader
def append_pdf(input,output):
[output.addPage(input.getPage(page_num)) for page_num in range(input.numPages)]
output = PdfFileWriter()
append_pdf(PdfFileReader(file("C:\\sample.pdf","rb")),output)
append_pdf(PdfFileReader(file("c:\\sample1.pdf","rb")),output)
append_pdf(PdfFileReader(file("c:\\sample2.pdf","rb")),output)
append_pdf(PdfFileReader(file("c:\\sample3.pdf","rb")),output)
output.write(file("c:\\combined.pdf","wb"))
------ 11月25日更新------
------似乎以上代码不再工作------
------请使用以下:------
from PyPDF2 import PdfFileMerger, PdfFileReader
import os
merger = PdfFileMerger()
file_folder = "C:\\My Ducoments\\"
root, dirs, files = next(os.walk(file_folder))
for path, subdirs, files in os.walk(root):
for f in files:
if f.endswith(".pdf"):
merger.append(file_folder + f)
merger.write(file_folder + "Economists-1.pdf")
您可以从PyPDF2模块使用pdffilemerge。
例如,要从路径列表中合并多个PDF文件,可以使用以下函数:
from PyPDF2 import PdfFileMerger
# pass the path of the output final file.pdf and the list of paths
def merge_pdf(out_path: str, extracted_files: list [str]):
merger = PdfFileMerger()
for pdf in extracted_files:
merger.append(pdf)
merger.write(out_path)
merger.close()
merge_pdf('./final.pdf', extracted_files)
这个函数从父文件夹中递归地获取所有文件:
import os
# pass the path of the parent_folder
def fetch_all_files(parent_folder: str):
target_files = []
for path, subdirs, files in os.walk(parent_folder):
for name in files:
target_files.append(os.path.join(path, name))
return target_files
# get a list of all the paths of the pdf
extracted_files = fetch_all_files('./parent_folder')
最后,使用这两个函数进行声明。可以包含多个文档的parent_folder_path,以及用于合并PDF的目的地的output_pdf_path:
# get a list of all the paths of the pdf
parent_folder_path = './parent_folder'
outup_pdf_path = './final.pdf'
extracted_files = fetch_all_files(parent_folder_path)
merge_pdf(outup_pdf_path, extracted_files)
你可以从这里获得完整的代码(来源):如何使用Python合并PDF文档
它是可能的,使用Python,合并单独的PDF文件?
Yes.
下面的例子将一个文件夹中的所有文件合并为一个新的PDF文件:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from argparse import ArgumentParser
from glob import glob
from pyPdf import PdfFileReader, PdfFileWriter
import os
def merge(path, output_filename):
output = PdfFileWriter()
for pdffile in glob(path + os.sep + '*.pdf'):
if pdffile == output_filename:
continue
print("Parse '%s'" % pdffile)
document = PdfFileReader(open(pdffile, 'rb'))
for i in range(document.getNumPages()):
output.addPage(document.getPage(i))
print("Start writing '%s'" % output_filename)
with open(output_filename, "wb") as f:
output.write(f)
if __name__ == "__main__":
parser = ArgumentParser()
# Add more options if you like
parser.add_argument("-o", "--output",
dest="output_filename",
default="merged.pdf",
help="write merged PDF to FILE",
metavar="FILE")
parser.add_argument("-p", "--path",
dest="path",
default=".",
help="path of source PDF files")
args = parser.parse_args()
merge(args.path, args.output_filename)
我在linux终端上通过利用subprocess(假设目录中存在one.pdf和two.pdf)使用pdf unite,目的是将它们合并为three.pdf
import subprocess
subprocess.call(['pdfunite one.pdf two.pdf three.pdf'],shell=True)