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a4-to-a3-pdf

将文件夹中的图片按顺序两两合并为A3横向PDF(两张A4左右并排)。触发词:合并PDF、合成A3、两张A4合成一页、图片转PDF。

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  • SKILL.md1.0 KB

SKILL.md (original)

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A4 to A3 PDF Merger

将多张图片合并为 A3 横向 PDF,每页放置两张图片(左右并排)。

Usage

方法1:使用脚本(推荐)

python scripts/merge_a4_to_a3.py <图片文件夹> <输出PDF路径> [dpi]

示例:

python scripts/merge_a4_to_a3.py "C:\Users\ZERO\Desktop\质保书" "C:\Users\ZERO\Desktop\输出.pdf"

方法2:手动生成

如需自定义(如添加白边、调整尺寸),参考脚本逻辑自行修改。

Output Format

  • 页面尺寸:A3 横向(420mm × 297mm)
  • 每页:左右两张 A4 图片,无白边
  • 分辨率:默认 300 DPI
  • 图片按数字顺序排列(1.jpg, 2.jpg, ...)

Dependencies

  • Python 3.x
  • Pillow: python -c "from PIL import Image" 或 python -m pip install Pillow

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