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PDF QR Extractor

Name: PDF QR Extractor
Author: mywebliu

作者 mywebliu · GitHub ↗ · v1.0.0 · MIT-0

cross-platform ✓ 安全检测通过

总下载

当前安装

版本数

在 OpenClaw 中安装

/install pdf-qr-extractor

功能描述

Extracts and saves QR codes from each page of a PDF by converting pages to images and detecting QR regions with padding.

使用说明 (SKILL.md)

PDF QR Code Extractor

从 PDF 文件中提取每一页的图片，并检测、裁剪保存其中的二维码。

功能

将 PDF 每一页转换为图片
使用 OpenCV + pyzbar 检测并裁剪二维码区域
二维码周围留有 10 像素白边（padding），便于扫码识别
保存到指定目录

使用方法

请帮我提取 PDF 中的二维码：[PDF文件路径]

例如：

请帮我提取 PDF 中的二维码：D:/pdftest/text.pdf

或者指定输出目录：

请帮我提取 PDF 中的二维码：D:/pdftest/text.pdf，输出到 ./my_qr

依赖安装

需要先安装依赖：

pip install fitz PyMuPDF opencv-python numpy pyzbar --break-system-packages

输出结构

输出目录/
├── qr_page_1_1.png      # 二维码图片
├── qr_page_2_1.png
├── text.pdf_pages/       # PDF页面图片（中间文件）
│   ├── page_1.png
│   └── page_2.png

适用场景

客户提供的 PDF 文件中包含生成的二维码，需要批量提取保存。

安全使用建议

This skill appears to do what it says and runs locally. Before installing/running: (1) review and run the included script on non-sensitive test PDFs; (2) install Python dependencies in an isolated virtual environment (avoid --break-system-packages unless you understand its effect); (3) ensure the system zbar library is installed for pyzbar to work; (4) be mindful that the script will write image files to disk (ensure output path permissions are appropriate). If you need stricter isolation, run it inside a disposable VM or container.

能力标签

crypto

能力评估

✓ Purpose & Capability

Name/description, SKILL.md, README, and the included script all describe PDF->image conversion and QR detection using PyMuPDF (fitz), OpenCV and pyzbar. Required capabilities and files align with the stated purpose; no unrelated credentials or system accesses are requested.

✓ Instruction Scope

Runtime instructions are narrowly scoped: convert PDF pages to images, detect/crop QR regions, add padding, and save files to an output directory. The SKILL.md and script only read the provided PDF and write image files; they do not attempt to read other system files, environment variables, or send data externally.

ℹ Install Mechanism

This is an instruction-only skill (no automated install). SKILL.md asks the user to pip install fitz PyMuPDF opencv-python numpy pyzbar. That is expected, but note: (1) pyzbar typically requires a system zbar library (native dependency) which is not mentioned; (2) listing both "fitz" and "PyMuPDF" is redundant/confusing (PyMuPDF provides the fitz module); (3) the pip suggestion includes --break-system-packages, which alters system package isolation and should be used cautiously. These are installation/usability notes rather than indicators of malicious behavior.

✓ Credentials

The skill requests no environment variables or credentials. The script only reads the provided PDF path and writes output files; requested access is proportional to the functionality.

✓ Persistence & Privilege

always is false and the skill does not request persistent or elevated platform privileges, nor does it modify other skills or global agent settings.

如何使用

确保已安装 OpenClaw（本地或 Docker 部署）
在对话框中输入安装命令：/install pdf-qr-extractor
安装完成后，直接呼叫该 Skill 的名称或使用 /pdf-qr-extractor 触发
根据 Skill 的参数说明提供必要输入，即可获得结构化输出

版本历史

v1.0.0

Initial release

元数据

Slug pdf-qr-extractor

版本 1.0.0

许可证 MIT-0

累计安装 0

当前安装数 0

历史版本数 1

常见问题

PDF QR Extractor 是什么？

Extracts and saves QR codes from each page of a PDF by converting pages to images and detecting QR regions with padding. 它是一个面向 Claude Code / OpenClaw 的 AI Agent Skill 插件，目前累计下载 82 次。

如何安装 PDF QR Extractor？

在 OpenClaw 或 Claude Code 对话框中运行命令「/install pdf-qr-extractor」即可一键安装，无需额外配置。

PDF QR Extractor 是免费的吗？

是的，PDF QR Extractor 完全免费，采用 MIT-0 许可证，可自由下载、安装和使用。

PDF QR Extractor 支持哪些平台？

PDF QR Extractor 跨平台运行，可在任意部署了 OpenClaw / Claude Code 的环境中使用（cross-platform）。

谁开发了 PDF QR Extractor？

由 mywebliu（@mywebliu）开发并维护，当前版本 v1.0.0。