利用Python实现Word转为PDF文档的格式转化 (提取PDF文本内容),实现PDF文件的合并、拆分,PDF页面旋转已经PDF页面增加水印
时间: 2023-06-12 14:01:53 浏览: 367
你好,可以使用Python中的PyPDF2和ReportLab库来进行Word转换为PDF格式,PDF文件的合并、拆分、页面旋转和增加水印。
对于Word转为PDF文档的格式转化,可以使用ReportLab库中的platypus包和pydocx包将Word文档转换为PDF文件。可以按照以下步骤进行操作:
1. 安装ReportLab库。可以使用pip命令进行安装,命令如下:
`pip install reportlab`
2. 安装pydocx库。可以使用pip命令进行安装,命令如下:
`pip install pydocx`
3. 打开Word文档,读取文档内容并用platypus包中的SimpleDocTemplate类创建PDF文档。将读取的内容添加到PDF文档中,并保存为PDF文件。以下是示例代码:
```
from docx import Document
from reportlab.lib.pagesizes import A4, portrait
from reportlab.platypus import SimpleDocTemplate, Paragraph
from reportlab.lib.styles import getSampleStyleSheet
def word_to_pdf(word_path, pdf_path):
document = Document(word_path)
doc = SimpleDocTemplate(pdf_path, pagesize=portrait(A4))
styles = getSampleStyleSheet()
paragraph_list = []
for para in document.paragraphs:
text = para.text
p = Paragraph(text, styles["Normal"])
paragraph_list.append(p)
doc.build(paragraph_list)
word_to_pdf("word_document.docx", "pdf_document.pdf")
```
对于PDF文件的合并、拆分,可以使用PyPDF2库中的PdfFileMerger和PdfFileReader类进行操作。以下是示例代码:
```
from PyPDF2 import PdfFileMerger, PdfFileReader, PdfFileWriter
def merge_pdfs(file_paths, output_path):
merger = PdfFileMerger()
for path in file_paths:
merger.append(path)
merger.write(output_path)
merger.close()
def split_pdfs(input_path, output_path):
input_pdf = PdfFileReader(open(input_path, "rb"))
for i in range(input_pdf.numPages):
output_pdf = PdfFileWriter()
output_pdf.addPage(input_pdf.getPage(i))
with open(output_path.format(i), "wb") as outputStream:
output_pdf.write(outputStream)
merge_pdfs(["pdf_document1.pdf", "pdf_document2.pdf"], "merged_document.pdf")
split_pdfs("pdf_document.pdf", "pdf_page_{}.pdf")
```
对于PDF页面旋转,可以使用PyPDF2库中的PdfFileReader和PdfFileWriter类进行操作。以下是示例代码:
```
from PyPDF2 import PdfFileReader, PdfFileWriter
def rotate_pdf(input_path, output_path, rotation_angle):
input_pdf = PdfFileReader(open(input_path, "rb"))
output_pdf = PdfFileWriter()
for i in range(input_pdf.numPages):
page = input_pdf.getPage(i)
page.rotateClockwise(rotation_angle)
output_pdf.addPage(page)
with open(output_path, "wb") as outputStream:
output_pdf.write(outputStream)
rotate_pdf("pdf_document.pdf", "rotated_document.pdf", 90)
```
对于PDF页面增加水印,可以使用PyPDF2库中的PdfFileReader和PdfFileWriter类进行操作。以下是示例代码:
```
from PyPDF2 import PdfFileReader, PdfFileWriter
from reportlab.lib.units import mm
from reportlab.pdfgen import canvas
def add_watermark(input_path, output_path, watermark_text):
c = canvas.Canvas("watermark.pdf", pagesize=A4)
c.setFont('Helvetica', 80)
c.setFillGray(0.5)
c.saveState()
c.rotate(45)
c.drawString(0, 0, watermark_text)
c.restoreState()
c.save()
input_pdf = PdfFileReader(open(input_path, "rb"))
output_pdf = PdfFileWriter()
watermark_pdf = PdfFileReader(open("watermark.pdf", "rb"))
for i in range(input_pdf.numPages):
page = input_pdf.getPage(i)
page.mergePage(watermark_pdf.getPage(0))
output_pdf.addPage(page)
with open(output_path, "wb") as outputStream:
output_pdf.write(outputStream)
add_watermark("pdf_document.pdf", "watermark_document.pdf", "Confidential")
```
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