@zhtx2026/dsh-pdf
DSH PDF 解析插件: 为 agent 提供 pdf_info / pdf_extract_text / pdf_render_page 三个工具。基于 pdfjs-dist + @napi-rs/canvas; 对未内嵌字体的 PDF (如嘉立创EDA导出) 自动改用系统字体渲染文字。热插拔 — 通过 cordis.patch.yml + profile node_modules 软链接挂载, 无需改动 dsh 源码。
插件会安装到这里；不确定时保持 web。
npx -y @deepseek-ai/dsh plugin --profile web add @zhtx2026/dsh-pdf@0.1.1Pdf 以 @zhtx2026/dsh-pdf 发布，当前版本为 0.1.1。Plugin Hub 会校验它的 manifest，并保存精确安装来源，便于复现安装结果。
点击下方 Badge 复制 Markdown，粘贴到 README 即可。
验证 package.json 声明的 GitHub 仓库，即可管理这个公开页面。认领后，Hub 会优先安排当前版本的安全扫描，并在通过后公开展示结果。
认领这个 Plugin →PDF parsing toolkit for DeepSeek Harness — three agent-facing tools (
pdf_info/pdf_extract_text/pdf_render_page) with hybrid engines, including system-font rendering for PDFs with non-embedded CJK fonts (e.g. EasyEDA / JLC EDA schematic exports).
Tags: dsh-plugin · pdf · pdfjs · canvas · schematic · tools
dsh plugin --profile web add @zhtx2026/dsh-pdf
Or from a local checkout during development:
dsh plugin --profile web add link:<path-to-repo>
Then restart DSH (or open a new session) — the three tools and an agent guidance block become available.
| Tool | What it does |
|---|---|
pdf_info | Page count, page sizes (pt), document metadata, and the font list with per-font embedded flags. |
pdf_extract_text | Extracts text per page; optional page and withPosition (per-line x/y coordinates + font size). |
pdf_render_page | Renders one page to a PNG (local file) with configurable scale/outDir; engine auto-selection. |
pdfjs-dist cannot render text in PDFs whose fonts are not embedded and lack a
ToUnicode map — the classic case is JLC EDA / EasyEDA schematic exports
(SimSun/SimHei Type0 fonts with UniGB-UCS2-H encoding): pdfjs emits
translateFont failed and drops the glyphs.
dsh-pdf solves this with a two-engine design:
BT/ET, Tf, Tm, Td, Tj, TJ) itself, maps
UniGB-UCS2-H/UTF-16BE strings to Unicode, and draws them with system
fonts (SimSun, SimHei, Microsoft YaHei, …) via @napi-rs/canvas.Text extraction uses the same auto-selection: embedded fonts → pdfjs text layer; non-embedded fonts → the built-in decoder (which correctly recovers CJK text pdfjs loses).
pdf_info("D:/Downloads/SCH_SA-V11A.pdf")
→ 3 pages, A3 landscape, jsPDF producer, 6 fonts (all non-embedded)
pdf_extract_text("D:/Downloads/SCH_SA-V11A.pdf", { page: 1 })
→ net names, pin numbers, and Chinese labels ("主控板", "嘉立创", …)
pdf_render_page("D:/Downloads/SCH_SA-V11A.pdf", { page: 1, scale: 2 })
→ D:/Downloads/SCH_SA-V11A-pages/page-1.png (2396×1698, engine: sysfont)
lib/index.js — cordis plugin entry (name, inject, apply); registers
the three tools as native tool objects (plain JSON-Schema parameters and
output — no @deepseek-ai/dsh-tools dependency needed) and injects the
agent guidance block (systemPrompt.section, order 160).lib/pdf-core.js — self-contained engine: PDF object parser, font scanner,
pdfjs loading with fs-based CMapReaderFactory/StandardFontDataFactory
(Node 24's global fetch doesn't speak file://), the built-in text
extractor, and the sysfont renderer.cordis.patch.yml — the dsh.bundle.patch insert row.Type0 CID codes equal Unicode code points
(true for UniGB-UCS2-H exports); exotic CID fonts fall back to pdfjs.