pdf SKILL.md skillA
pdf from asymmetric-al/core is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add asymmetric-al/core/pdf@git:20261001.4ae104ePins git:20261001.4ae104e in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- asymmetric-al/core
- Path
.agents/skills/pdf/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261001.4ae104e, committed Oct 1, 2026
- First version recorded
- Feb 18, 2026
- Size
- 8,214 bytes
- Repository stars
- 370
- License
- AGPL-3.0
Use this skill whenever the user wants to do anything with PDF files. This includes reading or extracting text/tables from PDFs, combining or merging multiple PDFs into one, splitting PDFs apart, rotating pages, adding watermarks, creating new PDFs, filling PDF forms, encrypting/decrypting PDFs, extracting images, and OCR on scanned PDFs to make them searchable. If the user mentions a .pdf file or asks to produce one, use this skill.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# PDF Processing Guide
## Overview
This guide covers essential PDF processing operations using Python libraries and command-line tools. For advanced features, JavaScript libraries, and detailed examples, see REFERENCE.md. If you need to fill out a PDF form, read FORMS.md and follow its instructions.
## Quick Start
```python
from pypdf import PdfReader, PdfWriter
# Read a PDF
reader = PdfReader("document.pdf")
print(f"Pages: {len(reader.pages)}")
# Extract text
text = ""
for page in reader.pages:
text += page.extract_text()
```
## Python Libraries
### pypdf - Basic Operations
#### Merge PDFs
```python
from pypdf import PdfWriter, PdfReader
writer = PdfWriter()
for pdf_file in ["doc1.pdf", "doc2.pdf", "doc3.pdf"]:
reader = PdfReader(pdf_file)
for page in reader.pages:
writer.add_page(page)
with open("merged.pdf", "wb") as output:
writer.write(output)
```
#### Split PDF
```python
reader = PdfReader("input.pdf")
for i, page in enumerate(reader.pages):
writer = PdfWriter()
writer.add_page(page)
with open(f"page_{i+1}.pdf", "wb") as output:
writer.write(output)
```
#### Extract Metadata
```python
reader = PdfReader("document.pdf")
…Read the whole file at its exact version.
How to install
mdr add asymmetric-al/core/pdf@sha256:c6ec597784914c8cThe line at the top of this page pins the label git:20261001.4ae104e, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_blh5z27c5jta2eaj)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Feb 18, 2026 and Oct 1, 2026, about one every 112 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261001.4ae104e latest | 2026-10-01 | 4ae104e | 8,214 B | A | view · diff |
| git:20260923.15c9348 | 2026-09-23 | 15c9348 | 8,212 B | A | view · diff |
| git:20260218.048cbae | 2026-02-18 | 048cbae | 8,437 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (8214 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
asymmetric-al/core · 370 stars · license AGPL-3.0 · pushed 2026-11-06 · branch develop
API
GET https://markdownregistry.com/api/v1/artifacts/art_blh5z27c5jta2eaj GET https://markdownregistry.com/api/v1/resolve?ref=asymmetric-al/core/pdf GET https://markdownregistry.com/api/v1/blob/c6ec597784914c8cdce5f2235164f48fbb847a4441a1bf3f74ba69d9bec6662b
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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