streamdoc-dl 0.2.3

Download PDFs from ePapyrus StreamDocs viewers

streamdoc-dl

Slop coded. PRs welcome.

Download PDFs from ePapyrus StreamDocs viewers.

StreamDocs is an HTML5 document viewer by ePapyrus used on Korean government sites (standard.go.kr, e-book.scourt.go.kr, etc.) that renders PDFs as page images in-browser with download disabled. This tool reconstructs the PDF by downloading page images and text data, producing a searchable PDF with selectable text.

Install

pip install streamdoc-dl

Usage

streamdoc-dl 'https://www.standard.go.kr/streamdocs/view/sd;streamdocsId=1234567890'

Output filename is auto-detected from the server metadata.

Options

streamdoc-dl URL [-o OUTPUT] [-z ZOOM] [-j JOBS] [--font FONT] [--compress [LEVEL]] [--tor]

Option	Default	Description
-o	auto	Output PDF path
-z	max	Zoom level: max for highest quality, or a number (100=native, 200=2x, 300=3x)
-j	4	Concurrent download threads
--font	auto	Path to TTF font for text layer
--compress	off	Compress with Ghostscript (screen/ebook/printer/prepress)
--tor	off	Route traffic through Tor (SOCKS5 proxy on 127.0.0.1:9050)
--no-strip-watermark	off	Keep watermark characters in the text layer

Compression

Use --compress to reduce output size via Ghostscript (gs must be installed):

streamdoc-dl URL --compress          # default: ebook quality
streamdoc-dl URL --compress printer  # higher quality

Font auto-detection

The invisible text layer needs a Korean-capable font for search/copy. The tool tries:

1. NanumGothic from common system paths
2. fc-match :lang=ko (Linux with fontconfig)
3. Fallback to reportlab built-in CID font (HYSMyeongJo-Medium)

To use a specific font: --font /path/to/font.ttf

Tor

Use --tor to route all traffic through Tor (must be running on port 9050):

tor &
streamdoc-dl URL --tor

Resume

Interrupted downloads are automatically resumed. Page images and text are cached as they download. Re-run the same command to continue from where it left off. The cache is cleaned up after the PDF is built.

Cache location:

• Linux: $XDG_CACHE_HOME/streamdoc-dl/ or ~/.cache/streamdoc-dl/
• macOS: ~/Library/Caches/streamdoc-dl/
• Windows: %LOCALAPPDATA%\streamdoc-dl\

How it works

1. Fetches document metadata from the StreamDocs v4 API
2. If the server allows direct download, fetches the original PDF
3. Otherwise, downloads page images and text data concurrently
4. Fixes the corrupted first byte on each image (server-side anti-scrape)
5. Builds a PDF with image backgrounds and invisible text overlay

License

GPL-3.0-or-later