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A4 To A3 Pdf
ASecurity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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- Added September 9, 2026
Security analysis
92/100- Installs packages at runtime which could introduce malicious dependencies
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[](https://www.skillsdirectory.com/skills/lord1egypt-a4-to-a3-pdf)---
name: a4-to-a3-pdf
version: 1.0.0
description: 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。
---
# 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)
```bash
python scripts/merge_a4_to_a3.py <图片文件夹> <输出PDF路径> [dpi]
```
示例:
```bash
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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