Python 批量 TXT 转 PDF（WeasyPrint 极简版）

leptune99

258人浏览 · 2026-06-20 17:15:42

leptune99 · 2026-06-20 17:15:42 发布

Python 批量 TXT 转 PDF（WeasyPrint 极简版）

一、功能

批量 .txt → 单个 output.pdf
每个 TXT 自动分页
第一行作为标题（加粗居中）
中文正常显示
自动页码（右下角）

二、安装依赖

1. 安装 WeasyPrint

pip3 install weasyprint

2. Mac 额外依赖

brew install pango cairo libffi

三、使用方法

1. 准备 TXT 文件

1.txt
2.txt
10.txt

2. 新建脚本 `txt2pdf.py`

复制下面代码：

from pathlib import Path
from html import escape
from weasyprint import HTML
import re


def natural_sort_key(p: Path):
    """
    让 1.txt 2.txt 10.txt 按数字顺序排序，而不是字符串排序
    """
    return [
        int(x) if x.isdigit() else x.lower()
        for x in re.split(r"(\d+)", p.stem)
    ]


TEMPLATE = """<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">

<style>

@page {{
    size: A4;
    margin: 10mm 8mm;

    @bottom-right {{
        content: counter(page);
        font-family: "PingFang SC", "Hiragino Sans GB", "STHeiti", "Noto Sans CJK SC", sans-serif;
        font-size: 10pt;
        color: #666;
    }}
}}

body {{
    margin: 0;
    padding: 0;

    background: white;
    color: #222;

    font-family:
        "PingFang SC",
        "Hiragino Sans GB",
        "STHeiti",
        "Noto Sans CJK SC",
        sans-serif;

    font-size: 16px;
    line-height: 1.6;

    -webkit-font-smoothing: antialiased;
}}

.chapter {{
    break-before: page;
}}

.chapter:first-child {{
    break-before: auto;
}}

.title {{
    font-size: 22px;
    font-weight: bold;
    text-align: center;

    line-height: 1.4;

    margin: 0 0 18px 0;
    padding-bottom: 10px;

    border-bottom: 1px solid #ddd;
}}

pre {{
    margin: 0;

    font: inherit;
    line-height: inherit;

    white-space: pre-wrap;
    word-break: break-word;
    overflow-wrap: anywhere;
}}

</style>

</head>
<body>

{content}

</body>
</html>
"""


def build_chapters(txt_files):
    chapters = []

    for txt_file in txt_files:
        text = txt_file.read_text(encoding="utf-8")

        lines = text.splitlines()

        if lines:
            title = escape(lines[0].strip())
            body = escape("\n".join(lines[1:]))
        else:
            title = ""
            body = ""

        chapters.append(f"""
<div class="chapter">
    <div class="title">{title}</div>
    <pre>{body}</pre>
</div>
""")

    return "\n".join(chapters)


def main():
    txt_files = sorted(
        Path(".").glob("*.txt"),
        key=natural_sort_key
    )

    if not txt_files:
        print("没有找到 txt 文件")
        return

    content = build_chapters(txt_files)

    html = TEMPLATE.format(content=content)

    HTML(
        string=html,
        base_url="."
    ).write_pdf("output.pdf")

    print(f"✓ 已生成 output.pdf，共 {len(txt_files)} 个 TXT 文件")


if __name__ == "__main__":
    main()