Markitdown
ImCa0/just-laws
Convert files and office documents to Markdown. An agent skill from ImCa0/just-laws.
为照片、身份证、护照、学位证、毕业证、资格证、营业执照等证件或证书扫描件及 PDF 添加本地文字水印。用户提出照片加版权水印、身份证或学历证件添加“仅限某用途”水印、资质文件批量加水印、生成水印预览，或需要保持头像、二维码、印章等区域可辨认时使用。支持 JPEG、PNG、WebP 和 PDF，默认先预览、保留原件并清除图片元数据。不用于去除水印、伪造或篡改证件内容，也不用于仅设计 Logo…
Install Add Photo Certificate Watermarks
$ npx skills add chujianyun/skills --skill add-photo-certificate-watermarks -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install chujianyun/skills add-photo-certificate-watermarks --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/chujianyun/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/add-photo-certificate-watermarks .claude/skills/add-photo-certificate-watermarks && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "add-photo-certificate-watermarks" agent skill from https://github.com/chujianyun/skills/tree/main/skills/add-photo-certificate-watermarks into .claude/skills/add-photo-certificate-watermarks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-photo-certificate-watermarks", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/chujianyun/skills/tree/main/skills/add-photo-certificate-watermarksType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add chujianyun/skills --skill add-photo-certificate-watermarks -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install chujianyun/skills add-photo-certificate-watermarks --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/chujianyun/skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/add-photo-certificate-watermarks .agents/skills/add-photo-certificate-watermarks && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "add-photo-certificate-watermarks" agent skill from https://github.com/chujianyun/skills/tree/main/skills/add-photo-certificate-watermarks into .agents/skills/add-photo-certificate-watermarks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-photo-certificate-watermarks", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add chujianyun/skills --skill add-photo-certificate-watermarks -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install chujianyun/skills add-photo-certificate-watermarks --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/chujianyun/skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/add-photo-certificate-watermarks .cursor/skills/add-photo-certificate-watermarks && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "add-photo-certificate-watermarks" agent skill from https://github.com/chujianyun/skills/tree/main/skills/add-photo-certificate-watermarks into .cursor/skills/add-photo-certificate-watermarks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-photo-certificate-watermarks", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/chujianyun/skills.git --path skills/add-photo-certificate-watermarks--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add chujianyun/skills --skill add-photo-certificate-watermarks -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install chujianyun/skills add-photo-certificate-watermarks --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/chujianyun/skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/add-photo-certificate-watermarks .gemini/skills/add-photo-certificate-watermarks && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "add-photo-certificate-watermarks" agent skill from https://github.com/chujianyun/skills/tree/main/skills/add-photo-certificate-watermarks into .gemini/skills/add-photo-certificate-watermarks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-photo-certificate-watermarks", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install chujianyun/skills add-photo-certificate-watermarksInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add chujianyun/skills --skill add-photo-certificate-watermarks -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/chujianyun/skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/add-photo-certificate-watermarks .github/skills/add-photo-certificate-watermarks && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "add-photo-certificate-watermarks" agent skill from https://github.com/chujianyun/skills/tree/main/skills/add-photo-certificate-watermarks into .github/skills/add-photo-certificate-watermarks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-photo-certificate-watermarks", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add chujianyun/skills --skill add-photo-certificate-watermarks -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install chujianyun/skills add-photo-certificate-watermarks --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/chujianyun/skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/add-photo-certificate-watermarks .opencode/skills/add-photo-certificate-watermarks && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "add-photo-certificate-watermarks" agent skill from https://github.com/chujianyun/skills/tree/main/skills/add-photo-certificate-watermarks into .opencode/skills/add-photo-certificate-watermarks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-photo-certificate-watermarks", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
add-photo-certificate-watermarks- GitHub stars
- 742
- Token cost
- ~820 tokens
- SKILL.md length
- 103 words
- Files
- 5 (incl. scripts, references)
- Skills in repo
- 35
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
为照片、身份证、护照、学位证、毕业证、资格证、营业执照等证件或证书扫描件及 PDF 添加本地文字水印。用户提出照片加版权水印、身份证或学历证件添加“仅限某用途”水印、资质文件批量加水印、生成水印预览，或需要保持头像、二维码、印章等区域可辨认时使用。支持 JPEG、PNG、WebP 和 PDF，默认先预览、保留原件并清除图片元数据。不用于去除水印、伪造或篡改证件内容，也不用于仅设计 Logo…
- Works in 5 steps: 确认输入与用途 → 选择预设与文案 → 检查依赖并生成预览 → …
- Tasks that involve PDF
- SKILL.md covers 工作流, 失败处理, Gotchas and 输出契约
- Runs Python scripts from its folder; calls python3
What it does
Add Photo Certificate Watermarks is an agent skill from chujianyun/skills. 为照片、身份证、护照、学位证、毕业证、资格证、营业执照等证件或证书扫描件及 PDF 添加本地文字水印。用户提出照片加版权水印、身份证或学历证件添加“仅限某用途”水印、资质文件批量加水印、生成水印预览，或需要保持头像、二维码、印章等区域可辨认时使用。支持 JPEG、PNG、WebP 和 PDF，默认先预览、保留原件并清除图片元数据。不用于去除水印、伪造或篡改证件内容，也不用于仅设计 Logo 水印素材。
Its SKILL.md is about 820 tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including scripts and reference files (for example `README.md`, `agents/openai.yaml` and `references/presets-and-safety.md`).
It sits in Documents & Office, covering PDF. The repository describes itself as: WuMing's Claude Skills.
When your agent uses it
- Tasks that involve PDF
Example prompts
- “/add-photo-certificate-watermarks”
Requirements
- Python 3
Workflow steps
5 steps, taken from the step headings in SKILL.md.
- 确认输入与用途
- 选择预设与文案
- 检查依赖并生成预览
- 审核预览
- 批量输出并交付
What it can do on your machine
Read from SKILL.md and the folder at commit 13b27aa. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 1 file in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
python3
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Add Photo Certificate Watermarks loads about 820 tokens when it runs, and up to ~1.6k if it reads all its reference files. Until then it costs about 59 tokens; SKILL.md has 103 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 103 words (~820 tokens).
- name
- add-photo-certificate-watermarks
Files
SKILL.md and 4 other files (scripts, references) in skills/add-photo-certificate-watermarks of chujianyun/skills.
- SKILL.md
- README.md
- agents/openai.yaml
- references/presets-and-safety.md
- scripts/add_watermark.py
Open the folder on GitHubat commit 13b27aa
Compare with similar skills
Add Photo Certificate Watermarks next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Add Photo Certificate Watermarks this skillchujianyun/skills | 742 | — | ~820 | Automated safety check: Pass | Custom licence | |
| MarkitdownImCa0/just-laws | 781 | 14 repos | ~3.2k | Automated safety check: Notes | MIT | |
| Gzh Designisjiamu/gzh-design-skill | 4k | — | ~2.2k | Automated safety check: Pass | AGPL-3.0 | |
| GenOffice Document CLIgenspark-ai/genoffice | 9.2k | — | ~19k | Automated safety check: Pass | Apache-2.0 | |
| Harness Book Best Practicewquguru/harness-books | 3.2k | — | ~4.1k | Automated safety check: Pass | None | |
| Bookforge Korean Ebook PDF Makergongnyang/bookforge | 316 | 1 repos | ~1.7k | Automated safety check: Pass | MIT |
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Categories
Questions about Add Photo Certificate Watermarks
What does Add Photo Certificate Watermarks do?
为照片、身份证、护照、学位证、毕业证、资格证、营业执照等证件或证书扫描件及 PDF 添加本地文字水印。用户提出照片加版权水印、身份证或学历证件添加“仅限某用途”水印、资质文件批量加水印、生成水印预览，或需要保持头像、二维码、印章等区域可辨认时使用。支持 JPEG、PNG、WebP 和 PDF，默认先预览、保留原件并清除图片元数据。不用于去除水印、伪造或篡改证件内容，也不用于仅设计 Logo…. Add Photo Certificate Watermarks is an agent skill from chujianyun/skills.
When should I use Add Photo Certificate Watermarks?
Add Photo Certificate Watermarks fits situations like: tasks that involve PDF.
How do I install Add Photo Certificate Watermarks in Claude Code?
Run `npx skills add chujianyun/skills --skill add-photo-certificate-watermarks -a claude-code`. Or copy the skill folder (skills/add-photo-certificate-watermarks in chujianyun/skills) into .claude/skills/add-photo-certificate-watermarks in your project. Claude Code loads it when a task matches its description.
How do I install Add Photo Certificate Watermarks in Codex?
Run `npx skills add chujianyun/skills --skill add-photo-certificate-watermarks -a codex`. Or copy the skill folder (skills/add-photo-certificate-watermarks in chujianyun/skills) into .agents/skills/add-photo-certificate-watermarks in your project. Codex loads it when a task matches its description.
Can I use Add Photo Certificate Watermarks in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add chujianyun/skills --skill add-photo-certificate-watermarks -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/add-photo-certificate-watermarks, .gemini/skills/add-photo-certificate-watermarks, .github/skills/add-photo-certificate-watermarks and .opencode/skills/add-photo-certificate-watermarks in your project.
What does Add Photo Certificate Watermarks need to run?
Going by SKILL.md and its folder, Add Photo Certificate Watermarks needs Python for the scripts in its folder and the command-line tools its instructions call (python3). Our summary lists: Python 3.
Does Add Photo Certificate Watermarks access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Add Photo Certificate Watermarks safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Add Photo Certificate Watermarks use?
Add Photo Certificate Watermarks has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Add Photo Certificate Watermarks use?
About 820 tokens (SKILL.md is roughly 3.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 747 tokens, read only when the agent opens those files.
What are the alternatives to Add Photo Certificate Watermarks?
Skills that share tags, products or a category with Add Photo Certificate Watermarks: Markitdown (ImCa0/just-laws, 781 stars), Gzh Design (isjiamu/gzh-design-skill, 4k stars), GenOffice Document CLI (genspark-ai/genoffice, 9.2k stars) and Harness Book Best Practice (wquguru/harness-books, 3.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Add Photo Certificate Watermarks?
chujianyun (a GitHub user) maintains it in chujianyun/skills, which has 742 GitHub stars. The repository holds 35 skills in this directory. The repository was last updated on October 9, 2026.
Source: chujianyun/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.