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Use for creating, editing, extracting, OCRing, filling, and converting PDF documents.
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.
| name | |
| description | Use for creating, editing, extracting, OCRing, filling, and converting PDF documents. |
| defaultProjectInstall | true |
| defaultProjectInstallOrder | 40 |
from pypdf import PdfReader, PdfWriter
reader = PdfReader("document.pdf")
print(f"Pages: {len(reader.pages)}")
text = "".join(page.extract_text() or "" for page in reader.pages)
Use this for fast inspection. Move to the tool-specific sections below when you need layout-aware extraction, OCR, forms, rendering, or creation.
| Task | Tool | Details |
|---|---|---|
| Create PDF from scratch | ReportLab | libraries/reportlab.md |
| Read / merge / split / rotate / encrypt | pypdf | — |
| Extract text and tables | pdfplumber | libraries/pdfplumber.md |
| Render pages to images | pypdfium2 | libraries/pypdfium2.md |
| Create/manipulate in JavaScript | pdf-lib | — |
| CLI merge/split/encrypt/optimize/repair | qpdf | libraries/cli-tools.md |
| CLI text extraction | pdftotext | libraries/cli-tools.md |
| CLI image extraction | pdfimages | libraries/cli-tools.md |
| CLI page rendering | pdftoppm | libraries/cli-tools.md |
| OCR scanned PDFs | pytesseract + pdf2image | Convert to images, then OCR |
| Fill PDF forms | pypdf or pdf-lib | form-filling.md |
| Convert PDF to Word | pdf2docx (load docx skill) | See docx skill — Converting PDF to Word |
Form filling: You MUST read form-filling.md before attempting to fill any PDF form.
Design defaults: See skills/design-foundations/SKILL.md for palette, fonts + PDF pairings, chart colors, and core principles (1 accent + neutrals, no decorative imagery, accessibility).
Typography: PDFs embed any TTF font — use distinctive, professional fonts, not system defaults. Download from Google Fonts at runtime, register with ReportLab, and it embeds automatically. See libraries/reportlab.md (Custom Fonts section) and skills/design-foundations/SKILL.md (PDF Pairings table + Font Strategy by Format). Default to a clean sans-serif (Inter, DM Sans, Work Sans).
CJK text: Fonts like Inter and DM Sans only cover Latin glyphs. ReportLab has no automatic font fallback — unregistered scripts render as tofu. Register Noto Sans CJK for Chinese, Japanese, or Korean text. See libraries/reportlab.md (CJK Font Support).
Always set metadata when creating PDFs:
"Kortix" unless the user asks for a different organization or author nameCanvas API: c.setTitle(...), c.setAuthor("Kortix") right after creating the canvas.
SimpleDocTemplate: pass title=..., author="Kortix" as constructor kwargs.
pdf-lib (JS): doc.setTitle(...), doc.setAuthor("Kortix").
Every PDF that includes information from web sources MUST have:
<super> tags, never Unicode superscripts)Each footnote entry must include the actual URL wrapped in an <a href> tag — never omit the URL or substitute a plain-text source name. See libraries/reportlab.md (Source Citations) for the implementation pattern.
All URLs in generated PDFs must be clickable. In ReportLab Paragraph objects, use <a href="..." color="blue"> markup. On the canvas, use canvas.linkURL(url, rect). See libraries/reportlab.md (Hyperlinks).
Never use Unicode subscript/superscript characters in ReportLab PDFs. Built-in fonts lack these glyphs, rendering them as black boxes. Use <sub> and <super> XML tags in Paragraph objects. For canvas text, manually adjust font size and y-offset. See libraries/reportlab.md (Subscripts and Superscripts).
Text extraction: pdftotext is the fastest option for plain text. Use pdfplumber when you need tables or coordinate data — don't use pypdf.extract_text() on large documents, it's slow.
Image extraction: pdfimages extracts embedded images directly and is much faster than rendering whole pages. Only render with pypdfium2 or pdftoppm when you need a visual snapshot of the page layout.
Large PDFs: Process pages individually or in chunks rather than loading the entire document. Use qpdf --split-pages to break up very large files before processing.
Encrypted PDFs: Use pypdf to detect and decrypt (reader.is_encrypted / reader.decrypt(pw)). If you don't have the password, try qpdf --password=X --decrypt. Run qpdf --show-encryption to inspect what protection is applied.
Corrupted PDFs: Run qpdf --check to diagnose structural problems, then qpdf --replace-input to attempt repair.
Text extraction fails: If pdfplumber or pdftotext return empty/garbled text, the PDF is likely scanned images. Fall back to OCR (see below).
import pytesseract
from pdf2image import convert_from_path
pages = convert_from_path("scan_output.pdf", dpi=300)
ocr_text = "\n\n".join(
f"--- Page {n} ---\n{pytesseract.image_to_string(pg)}"
for n, pg in enumerate(pages, 1)
)
How to send a notetaker bot into a video meeting (Google Meet / Zoom / Teams) and work with what it captures — join a call, confirm it got admitted, monitor its lifecycle, pull the speaker-attributed transcript, and produce a recap with decisions + action items, then remove it. Drives the `meet` CLI, which runs through the Kortix Executor (the meeting-bot provider key is resolved server-side; nothing in the sandbox). Load this WHENEVER the user asks to join / attend / record / transcribe / take notes on a meeting, "send a notetaker", "summarize that call", drops a Meet/Zoom/Teams link, or asks how to do anything with a meeting bot.
Kortix brand + design system: the rules, tokens, and component library for building any Kortix frontend UI (apps/web). Load this WHENEVER you create or edit a page, screen, component, list, card, badge, avatar, modal, form, empty state, toast, tooltip, or any visual surface in apps/web. Always load the companion skill make-interfaces-feel-better (apps/web/.agents/skills/make-interfaces-feel-better/SKILL.md) in the same session — brand/tokens here, polish/motion/haptics there. Source of truth: globals.css + the live /design-system page + src/components/ui + the reference implementations listed below.
How to roll Kortix PRODUCTION back to an older already-released version — the inverse of a release. Covers the one-dispatch rollback-prod.yml engine, the per-surface mechanics (API + gateway = Argo image-tag swap; frontend = Vercel promote), the all-important Vercel frontend behavior (why a backend-only push can 'clobber' a FE rollback, and the 'don't rebuild the FE for backend-only pushes' skip that fixes it), the DB/migration-drift safety check that is the real blocker, and how a later promote returns prod to latest. Load WHENEVER the user wants to roll back / revert / downgrade / 'go back a version' on prod, asks how the rollback or the frontend clobber/skip behavior works, or needs to run rollback-prod.yml. Pairs with kortix-release (the forward direction).
Create, manage, validate, preview, and export HTML presentation slides (1920x1080). Load this skill when you need to build a slide deck, export to PDF/PPTX, or preview slides in a browser.
Create, manage, validate, preview, and export HTML presentation slides (1920x1080). Load this skill when you need to build a slide deck, export to PDF/PPTX, or preview slides in a browser.
Canonical reference for a Kortix project: the platform model (repo-native projects, sessions on ephemeral branches, the strict boundary between `kortix.toml` and OpenCode config under `.kortix/opencode/`); the full `kortix.toml` manifest (keys, trigger fields, secrets contract, `[[apps]]` deploy surface); the complete `kortix` CLI (commands, flags, the project-scoped token model, the in-sandbox `KORTIX_TOKEN`); the change-request (CR) system for landing session work on `main` (an agent MUST open a CR to merge); the session sandbox runtime (which supports Docker and Docker-in-Docker); and the OpenCode runtime (agents, skills, commands, tools, plugins, MCP servers, permissions, AGENTS.md rules, models). Load whenever the user asks how Kortix works, about `kortix.toml`, the `kortix` CLI, anything under `.kortix/opencode/`, how to merge/ship/land work on `main`, change requests/CRs/PRs, or to author/edit any OpenCode primitive.