from pyPdf import PdfFileWriter, PdfFileReader
import StringIO
from reportlab.pdfgen import canvas
from reportlab.lib.pagesizes import letter

packet = StringIO.StringIO()
can = canvas.Canvas(packet, pagesize=letter)
can.drawString(10, 100, "Hello world")
can.save()

#move to the beginning of the StringIO buffer
packet.seek(0)

# create a new PDF with Reportlab
new_pdf = PdfFileReader(packet)
# read your existing PDF
existing_pdf = PdfFileReader(file("original.pdf", "rb"))
output = PdfFileWriter()
# add the "watermark" (which is the new pdf) on the existing page
page = existing_pdf.getPage(0)
page.mergePage(new_pdf.getPage(0))
output.addPage(page)
# finally, write "output" to a real file
outputStream = file("destination.pdf", "wb")
output.write(outputStream)
outputStream.close()

Python 3.x的示例:

from PyPDF2 import PdfFileWriter, PdfFileReader
import io
from reportlab.pdfgen import canvas
from reportlab.lib.pagesizes import letter

packet = io.BytesIO()
can = canvas.Canvas(packet, pagesize=letter)
can.drawString(10, 100, "Hello world")
can.save()

#move to the beginning of the StringIO buffer
packet.seek(0)

# create a new PDF with Reportlab
new_pdf = PdfFileReader(packet)
# read your existing PDF
existing_pdf = PdfFileReader(open("original.pdf", "rb"))
output = PdfFileWriter()
# add the "watermark" (which is the new pdf) on the existing page
page = existing_pdf.getPage(0)
page.mergePage(new_pdf.getPage(0))
output.addPage(page)
# finally, write "output" to a real file
outputStream = open("destination.pdf", "wb")
output.write(outputStream)
outputStream.close()

我知道这是一篇老文章,但我花了很长时间试图找到一个解决方案。我发现了一个只使用ReportLab和PyPDF的不错的版本,所以我想与大家分享一下:

1. 使用 PdfFileReader() ,我们称之为 输入
2. 创建包含要使用ReportLab添加的文本的新pdf,并将其另存为字符串对象
3. PdfileReader() ,我们称之为 文本
4. 使用创建新的PDF对象 PdfFileWriter() ,我们称之为 输出
5. 反复浏览 输入 申请 .mergePage(*text*.getPage(0)) 对于要添加文本的每个页面,请使用 output.addPage()

这适用于简单的文本添加。请参阅PyPDF的示例以获取文档水印。

以下是回答以下问题的一些代码:

packet = StringIO.StringIO()
can = canvas.Canvas(packet, pagesize=letter)
<do something with canvas>
can.save()
packet.seek(0)
input = PdfFileReader(packet)

从这里可以将输入文件的页面与另一个文档合并。

pdfrw examples/rl1 github上的子目录。免责声明:我是pdfrw的作者。

杠杆作用 David Dehghan answer 上面介绍了Python 2.7.13中的以下工作:

from PyPDF2 import PdfFileWriter, PdfFileReader, PdfFileMerger

import StringIO

from reportlab.pdfgen import canvas
from reportlab.lib.pagesizes import letter

packet = StringIO.StringIO()
# create a new PDF with Reportlab
can = canvas.Canvas(packet, pagesize=letter)
can.drawString(290, 720, "Hello world")
can.save()

#move to the beginning of the StringIO buffer
packet.seek(0)
new_pdf = PdfFileReader(packet)
# read your existing PDF
existing_pdf = PdfFileReader("original.pdf")
output = PdfFileWriter()
# add the "watermark" (which is the new pdf) on the existing page
page = existing_pdf.getPage(0)
page.mergePage(new_pdf.getPage(0))
output.addPage(page)
# finally, write "output" to a real file
outputStream = open("destination.pdf", "wb")
output.write(outputStream)
outputStream.close()

cpdf

cpdf -add-text "Line of text" input.pdf -o output .pdf

您可能会更幸运地将问题分解为将PDF转换为可编辑格式,编写更改,然后将其转换回PDF。我不知道有哪一个库可以让你直接编辑PDF,但是在文档和PDF之间有很多转换器。

如果您在Windows上,这可能会起作用:

PDF Creator Pilot

还有一份关于Python中PDF创建和编辑框架的白皮书。虽然有点过时,但也许可以给你一些有用的信息:

Using Python as PDF Editing and Processing Framework