Professional PDF solution. Create PDFs using HTML+Paged.js (academic papers, reports, documents). Process existing PDFs using Python (read, extract, merge, split, fill forms). Supports KaTeX math formulas, Mermaid diagrams, three-line tables, citations, and other academic elements. Also use this ski

Route Selection Route Trigger Route File HTML (default) All PDF creation requests routes/html.md LaTeX User explicitly requests LaTeX, .tex, or Tectonic routes/latex.md Process Work with existing PDFs (extract, merge, fill forms, etc.) routes/process.md Default to HTML. Only use LaTeX route when user explicitly requests it. MANDATORY: Read Route File Before Implementation <system reminder You MUST read the corresponding route file before writing ANY code. Route files contain critical implementation details NOT duplicated here. Skipping this step leads to incorrect output (wrong scripts, missing CSS, broken layouts). </system reminder Before implementation, you MUST: 1. Determine the route (HTML / LaTeX / Process) 2. Read the route file ( routes/html.md , routes/latex.md , or routes/process.md ) 3. Only then proceed with implementation This file (SKILL.md) contains constraints and principles. Route files contain how to details . Decision Rules Route Selection User Says Route "Create a PDF", "Make a report", "Write a paper" HTML "Use LaTeX", "Compile .tex", "Use Tectonic" LaTeX "Extract text from PDF", "Merge these PDFs", "Fill this form" Process Cover Style Selection (HTML Route) Context Style Academic paper, thesis, formal coursework Minimal (white, centered, no decoration) Reports, proposals, professional documents Designed (choose from style reference in html.md) Uncertain Default to Designed — plain text cover = mediocre Key principle : Cover background separates "acceptable" from "impressive". See html.md for 11 style options. Citation Format Selection Document Language Format Chinese GB/T 7714 (use [J][M][D] identifiers) English APA Mixed Chinese refs → GB/T 7714, English refs → APA Quick Start Use the unified CLI for all operations: Exit codes: 0 = success 1 = usage error 2 = dependency missing (run pdf.sh fix ) 3 = runtime error Dependencies by route: HTML route : Node.js, Playwright, Chromium Process route : Python 3, pikepdf, pdfplumber LaTeX route : Tectonic Core Constraints (Must Follow) 1. Output Language Output language must match user's query language. User writes in Chinese → PDF content in Chinese User writes in English → PDF content in English User explicitly specifies language → Follow user's specification 2. Word Count and Page Constraints Strictly follow user specified word/page count requirements Do not arbitrarily inflate content length 3. Citation and Search Standards CRITICAL: Search Before Writing DO NOT fabricate information. When in doubt, SEARCH. If content involves ANY of these, you MUST search FIRST before writing: Statistics, numbers, percentages, rankings Policies, regulations, laws, standards Academic research, theories, methodologies Current events, recent developments Anything you're not 100% certain about <system reminder Never proceed with writing if you need statistics, research data, or policy information without searching first. Making up facts is strictly prohibited. When uncertain, search. </system reminder When Search is Required Scenario Search? Notes Statistics, data Required e.g., "2024 employment rate" Policies, regulations Required e.g., "startup subsidies" Research, papers Required e.g., "effectiveness of method X" Time sensitive content Required Information after knowledge cutoff Uncertain facts Required If unsure, always search Common knowledge Not needed e.g., "water boils at 100°C" Search workflow : 1. Identify facts/data requiring verification 2. Search for authentic sources 3. If results insufficient, iterate search until reliable info obtained 4. Include real sources in references 5. If search fails repeatedly, tell the user instead of making up data Citations Must Be Real Fabricating references is prohibited . All citations must have: Correct author/institution names Accurate titles Verifiable year, journal/source Cross references (Must Be Clickable) Note : id must be placed at container top (see CSS Counters section in html.md). Content Quality Constraints 1. Word/Page Count Constraints Must strictly follow user specified word or page count requirements : User Request Execution Standard Specific word count (e.g., "3000 words") Within ±20%, i.e., 2400 3600 words Specific page count (e.g., "5 pages") Exactly equal, last page may be partial Word count range (e.g., "2000 3000 words") Must fall within range No explicit requirement Infer reasonably by document type; prefer thorough over superficial Minimum specified (e.g., "more than 5000 words") No more than 2x, i.e., 5000 10000 words Prohibited behaviors : Arbitrarily shortening content ("concise" is not an excuse) Padding pages with excessive bullet lists (maintain high information density) Exceeding twice the user's requested length Special case Resume/CV : Resume should be 1 page unless user specifies otherwise Use compact margins: margin: 1.5cm 2. Outline Adherence (Mandatory) When user provides outline : Strictly follow the user provided outline structure Section titles must match outline (minor wording adjustments OK, no level/order changes) Do not add or remove sections arbitrarily If outline seems problematic, ask user first before modifying When no user outline : Use standard structures based on document type: Academic papers : IMRaD (Introduction Methods Results Discussion) or Introduction Literature Review Methods Results Discussion Conclusion Business reports : Conclusion first (Executive Summary → Detailed Analysis → Recommendations) Technical docs : Overview → Principles → Usage → Examples → FAQ Course assignments : Follow assignment structure requirements Sections must have logical progression, no disconnects Tech Stack Overview Route Tools Purpose HTML Playwright + Paged.js HTML → PDF conversion HTML KaTeX, Mermaid Math formulas, diagrams Process pikepdf Form filling, page operations, metadata Process pdfplumber Text and table extraction Process LibreOffice Office → PDF conversion LaTeX Tectonic LaTeX → PDF compilation

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