How do I install the Stirling PDF skill?

Run npx skillmds@latest add modbender/stirling-pdf in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Stirling PDF safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: executes scripts, makes network calls, reads secrets. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Stirling PDF?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Stirling PDF free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Stirling PDF?

modbender (@modbender) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Stirling PDF by modbender — Agent Skill

Name: Stirling PDF
Rating: 4.2 (5 reviews)
Author: modbender

File contents

Stirling-PDF Skill

Self-hosted PDF manipulation platform with 60+ tools via REST API.

Configuration

Set these environment variables:

STIRLING_PDF_URL — Your Stirling-PDF instance URL (default: http://localhost:8080)
STIRLING_API_KEY — API key if authentication is enabled

Docs

Official docs: https://docs.stirlingpdf.com
Swagger UI: <your-instance>/swagger-ui/index.html on your deployment

Quick Commands

# Use the wrapper script
node ~/.openclaw/skills/stirling-pdf/scripts/pdf.js <operation> [options]

# Examples:
node pdf.js merge file1.pdf file2.pdf -o merged.pdf
node pdf.js split input.pdf -o ./output-dir
node pdf.js compress input.pdf -o compressed.pdf
node pdf.js ocr input.pdf -o searchable.pdf
node pdf.js convert-to-pdf document.docx -o output.pdf
node pdf.js pdf-to-word input.pdf -o output.docx
node pdf.js add-watermark input.pdf "DRAFT" -o watermarked.pdf

Available Operations

Page Operations

merge - Combine multiple PDFs
split - Split PDF into parts
rotate - Rotate pages
extract-pages - Extract specific pages
reorder - Reorganize pages

Conversion

convert-to-pdf - Word, Excel, Images, HTML → PDF
pdf-to-word - PDF → Word
pdf-to-image - PDF → Images
pdf-to-text - Extract text

Content

compress - Reduce file size
ocr - Make scanned PDFs searchable
add-watermark - Add text/image watermark
add-stamp - Add stamp
redact - Remove sensitive content
sign - Add signature

Security

add-password - Password protect
remove-password - Remove password
sanitize - Remove metadata/scripts

Direct API Usage

For operations not covered by the script, call the API directly:

curl -X POST "$STIRLING_PDF_URL/api/v1/general/merge-pdfs" \
  -H "X-API-KEY: $STIRLING_API_KEY" \
  -H "Content-Type: multipart/form-data" \
  -F "fileInput=@file1.pdf" \
  -F "fileInput=@file2.pdf" \
  -o merged.pdf

Check Swagger UI at <your-instance>/swagger-ui/index.html for all endpoints.

Common Endpoints

Operation	Endpoint
Merge	`/api/v1/general/merge-pdfs`
Split	`/api/v1/general/split-pages`
Compress	`/api/v1/misc/compress-pdf`
OCR	`/api/v1/misc/ocr-pdf`
PDF to Image	`/api/v1/convert/pdf/img`
Image to PDF	`/api/v1/convert/img/pdf`
Add Watermark	`/api/v1/security/add-watermark`
Add Password	`/api/v1/security/add-password`

Notes

Most endpoints use POST with multipart/form-data
File input parameter is usually fileInput
Response is the processed PDF file
Check Swagger UI for exact parameters per operation

---name: stirling-pdfdescription: PDF manipulation via Stirling-PDF API. Merge, split, convert, OCR, compress, sign, redact, and more. Self-hosted.--- # Stirling-PDF Skill Self-hosted PDF manipulation platform with 60+ tools via REST API. ## Configuration Set these environment variables: - `STIRLING_PDF_URL` — Your Stirling-PDF instance URL (default: `http://localhost:8080`) - `STIRLING_API_KEY` — API key if authentication is enabled ## Docs - **Official docs:** https://docs.stirlingpdf.com - **Swagger UI:** `<your-instance>/swagger-ui/index.html` on your deployment ## Quick Commands ```bash # Use the wrapper script node ~/.openclaw/skills/stirling-pdf/scripts/pdf.js <operation> [options] # Examples: node pdf.js merge file1.pdf file2.pdf -o merged.pdf node pdf.js split input.pdf -o ./output-dir node pdf.js compress input.pdf -o compressed.pdf node pdf.js ocr input.pdf -o searchable.pdf node pdf.js convert-to-pdf document.docx -o output.pdf node pdf.js pdf-to-word input.pdf -o output.docx node pdf.js add-watermark input.pdf "DRAFT" -o watermarked.pdf ``` ## Available Operations ### Page Operations - `merge` - Combine multiple PDFs - `split` - Split PDF into parts - `rotate` - Rotate pages - `extract-pages` - Extract specific pages - `reorder` - Reorganize pages ### Conversion - `convert-to-pdf` - Word, Excel, Images, HTML → PDF - `pdf-to-word` - PDF → Word - `pdf-to-image` - PDF → Images - `pdf-to-text` - Extract text ### Content - `compress` - Reduce file size - `ocr` - Make scanned PDFs searchable - `add-watermark` - Add text/image watermark - `add-stamp` - Add stamp - `redact` - Remove sensitive content - `sign` - Add signature ### Security - `add-password` - Password protect - `remove-password` - Remove password - `sanitize` - Remove metadata/scripts ## Direct API Usage For operations not covered by the script, call the API directly: ```bash curl -X POST "$STIRLING_PDF_URL/api/v1/general/merge-pdfs" \ -H "X-API-KEY: $STIRLING_API_KEY" \ -H "Content-Type: multipart/form-data" \ -F "fileInput=@file1.pdf" \ -F "fileInput=@file2.pdf" \ -o merged.pdf ``` Check Swagger UI at `<your-instance>/swagger-ui/index.html` for all endpoints. ## Common Endpoints | Operation | Endpoint | |-----------|----------| | Merge | `/api/v1/general/merge-pdfs` | | Split | `/api/v1/general/split-pages` | | Compress | `/api/v1/misc/compress-pdf` | | OCR | `/api/v1/misc/ocr-pdf` | | PDF to Image | `/api/v1/convert/pdf/img` | | Image to PDF | `/api/v1/convert/img/pdf` | | Add Watermark | `/api/v1/security/add-watermark` | | Add Password | `/api/v1/security/add-password` | ## Notes - Most endpoints use POST with multipart/form-data - File input parameter is usually `fileInput` - Response is the processed PDF file - Check Swagger UI for exact parameters per operation

Frequently asked questions

Stirling PDF