5 种使用Python自动化处理PDF的实用方法介绍

import subprocess
import os

input_path = r"E:/Administrator/Python1/input/AI绘画的利与弊-图片版.pdf"
output_path = r"E:/Administrator/Python1/output/转为TXT.pdf"

# 调用命令行工具 pdftotext
subprocess.run(["pdftotext", input_path, output_path])

if os.path.exists(output_path):
    print("文本提取成功:", output_path)

from PyPDF2 import PdfReader, PdfWriter

input_path = r"E:/Administrator/Python1/input/AI绘画的利与弊-图片版.pdf"
output_path = r"E:/Administrator/Python1/output/拆分PDF.pdf"

# 创建 PdfReader 对象并读取源 PDF
reader = PdfReader(input_path)

# 创建 PdfWriter 对象
writer = PdfWriter()

# 拆分 PDF，并将前两页添加到 writer
for i in range(2):  
    writer.add_page(reader.pages[i])

# 将拆分后的 PDF 写入新文件
with open(output_path, "wb") as f:
    writer.write(f)

print("拆分后的 PDF 已生成:", output_path)

import pdfplumber

input_path = r"/input/AI绘画的利与弊-图片版.pdf"

with pdfplumber.open(input_path) as pdf:
    page = pdf.pages[1]
    text = page.extract_text()
    print("第一页提取的文本:\n", text)

from reportlab.pdfgen import canvas
from reportlab.lib.pagesizes import A4

output_path = r"/output/生成PDF.pdf"

c = canvas.Canvas(output_path, pagesize=A4)
c.drawString(100, 750, "this is a PDF created using ReportLab.")
c.drawString(100, 730, "You can add text, images and even tables.")
c.showPage()
c.save()

print("新 PDF 已生成:", output_path)

from spire.pdf.common import *
from spire.pdf import *

# 加载 PDF
doc = PdfDocument()
doc.LoadFromFile("/input/Booklet.pdf")

# 创建签名生成器
signatureMaker = PdfOrdinarySignatureMaker(doc, "/alice.pfx", "e-iceblue")

# 配置签名属性，如签名者姓名、联系方式、位置和签名原因
signature = signatureMaker.Signature
signature.Name = "Alice"
signature.ContactInfo = "+86 12345678"
signature.Location = "China"
signature.Reason = "Author"

# 创建自定义签名外观
appearance = PdfSignatureAppearance(signature)
appearance.NameLabel = "Signer: "
appearance.ContactInfoLabel = "Tel: "
appearance.LocationLabel = "Address:"
appearance.ReasonLabel = "Reason: "
appearance.SignatureImage = PdfImage.FromFile("/signature2.png")
appearance.GraphicMode = GraphicMode.SignImageAndSignDetail
appearance.SignImageLayout = SignImageLayout.none

# 获取首页
page = doc.Pages[0]

# 将签名添加到页面指定位置
signatureMaker.MakeSignature("Alice sign", page, 90.0, 600.0, 260.0, 100.0, appearance)

# 保存已签名文档
doc.SaveToFile("/output/数字签名.pdf")
doc.Close()

from spire.pdf.common import *
from spire.pdf import *

# 加载 PDF 文件
doc = PdfDocument()
doc.LoadFromFile("/input/AI绘画的利与弊-图片版.pdf")

# 使用打开密码和权限密码加密 PDF
doc.Security.Encrypt("openPsd", "permissionPsd", PdfPermissionsFlags.FillFields, PdfEncryptionKeySize.Key128Bit)

doc.SaveToFile("/output/加密PDF.pdf", FileFormat.PDF)