pdf-tools

pdf-tools is a skill for Claude Code, Codex from diillson/chatcli. It costs 82 tokens per session (588 once invoked), scanned A, original, Apache-2.0.

A set of local tools for editing PDF files and converting them to or from images and text. PDF is a fixed-layout document format commonly used for sharing finished files.

In plain words
What is it for?
Use it to merge, split, rotate, compress, inspect, or extract text and pages from PDFs.
Why use it?
It handles routine PDF operations without uploading files to an online service or editing them one page at a time.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/diillson/chatcli/pdf-tools
Any agent
npx skills add diillson/chatcli --skill pdf-tools
Clone the repo
git clone --depth 1 https://github.com/diillson/chatcli

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for pdf-tools

README.md
[![agentmods](https://agentmods.dev/badge/skills/diillson/chatcli/pdf-tools.svg)](https://agentmods.dev/skills/diillson/chatcli/pdf-tools)
Your own site
<a href="https://agentmods.dev/skills/diillson/chatcli/pdf-tools"><img src="https://agentmods.dev/badge/skills/diillson/chatcli/pdf-tools.svg" alt="Measured on agentmods" height="20"></a>
Per session 82 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 588 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00082 $0.00588
Opus 5 $0.00041 $0.00294
Sonnet 5 $0.00016 $0.00118
Haiku 4.5 $0.00008 $0.00059

Measured yesterday against content hash c3ade2024715, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

pdf-tools scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

pkg/persona/builtin/skills/pdf-tools/SKILL.md · 71 lines

What it actually says

PDF Tools

Local, keyless PDF manipulation. Detect what's installed and use it; nothing leaves the machine.

Step 0 — Detect tools

  • macOS / Linux: command -v qpdf pdftk pdftotext pdfinfo pdftoppm img2pdf gs 2>/dev/null
  • Windows: Get-Command qpdf, pdftk, pdftotext -ErrorAction SilentlyContinue

Install hints: brew install qpdf poppler img2pdf ghostscript / apt install qpdf poppler-utils img2pdf ghostscript / choco install qpdf.

Common operations

Merge (qpdf preferred, pdftk fallback):

qpdf --empty --pages a.pdf b.pdf -- merged.pdf
pdftk a.pdf b.pdf cat output merged.pdf

Split / extract pages:

qpdf in.pdf --pages in.pdf 2-5 -- pages_2_5.pdf
pdftk in.pdf cat 1 3 5 output odd.pdf

Rotate:

qpdf in.pdf out.pdf --rotate=+90:1-z

Compress (Ghostscript):

gs -sDEVICE=pdfwrite -dPDFSETTINGS=/ebook -o small.pdf in.pdf

Extract text (then summarize/answer with @read):

pdftotext -layout in.pdf out.txt

PDF → images / images → PDF:

pdftoppm -png -r 150 in.pdf page
img2pdf img1.png img2.jpg -o out.pdf

Inspect: pdfinfo in.pdf (page count, size, encryption).

Rules

  • Work on copies; never overwrite the user's source PDF unless told to.
  • For scanned/image PDFs with no text layer, hand off to the ocr skill.
  • Report output path + page count after each operation.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 71 lines · 82 tokens per session scan A c3ade2024715

Subscribe to this mod's changes

pdf-tools is a skill published in the GitHub repository diillson/chatcli (89 stars, last pushed yesterday), licensed Apache-2.0. It adds 82 tokens to every session and 588 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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