lunarbeam 0.1.2

Compile a Beamer PDF into a standalone HTML presentation with clickable links, overlays, and media.

LunarBeam

Turn your Beamer PDF into a media compatible, interactive HTML presentation. With overlays, clickable links, embedded videos/GIFs, and a laser pointer – no LaTeX installation needed on the presenting machine.

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Why LunarBeam?

• Present anywhere – just double‑click index.html (or open it in a browser). No Python, no LaTeX, no projector software.
• All features intact – overlays (\pause, \only, \uncover), internal/external hyperlinks, videos and GIFs (via a simple JSON sidecar), and a laser pointer.
• Pixel‑perfect scaling – the slide image fits any screen size without moving your clickable areas.
• Offline & portable – share a single folder or zip file; everything is included.

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Installation

LunarBeam requires Python 3.9 or later.

pip install lunarbeam

Quick start

1. Compile your Beamer PDF as usual (e.g., pdflatex presentation.tex).

pdflatex mytalk.tex

convert the PDF to an interactive HTML presentation:

lunarbeam mytalk.pdf

3. Open mytalk_pres\index.html in a web browser to present.

cd mytalk_pres
python -m http.server 8000   # or simply double-click index.html

Command‑line options

usage: lunarbeam [-h] [-o OUTPUT] [--tex TEX] [--nav NAV]
                 [--project-dir PROJECT_DIR] [--no-validate]
                 [--resolution RESOLUTION] pdf

positional arguments:
  pdf                   Path to the compiled Beamer PDF

options:
  -h, --help            show this help message and exit
  -o OUTPUT, --output OUTPUT
                        Output directory (default: <pdf_basename>_pres/)
  --tex TEX             Path to the LaTeX source (auto‑detected)
  --nav NAV             Path to the .nav file (auto‑detected)
  --project-dir PROJECT_DIR
                        Directory where auxiliary files are searched
  --no-validate         Skip consistency checks between PDF and .nav
  --resolution RESOLUTION
                        Render resolution as WIDTHxHEIGHT (e.g. 1280x720).
                        Default: 1920x1080

Including videos and GIFs

LunarBeam uses a simple JSON file. Place it next to your PDF with the same base name, e.g. mytalk_media.json.

{
  "media": [
    {
      "phys_page": 5,
      "type": "video",
      "file": "media/demo.mp4",
      "x": 200,
      "y": 300,
      "w": 640,
      "h": 480,
      "autoplay": true,
      "loop": true,
      "muted": true
    },
    {
      "phys_page": 7,
      "type": "gif",
      "file": "media/animation.gif",
      "x": 400,
      "y": 150,
      "w": 400,
      "h": 300,
      "autoplay": true,
      "loop": true
    }
  ]
}

Coordinates are in pixels relative to the rendered slide image (default 1920×1080).

Put the actual media files (demo.mp4, animation.gif) in a media/ folder next to the PDF. LunarBeam will copy them into the output.

Contributing Pull requests are welcome! Please open an issue first to discuss what you’d like to change.