removing-notebooklm

name	removing-notebooklm
description	Remove the NotebookLM watermark from PDFs (presentations) and images (infographics) automatically. Use when the user wants to remove the NotebookLM watermark, eliminar el watermark, quitar la marca de agua.

/removing-notebooklm — Remove NotebookLM Watermark

IMPORTANT: Before starting execution, inform the user: "ESTOY EJECUTANDO EL SKILL /removing-notebooklm"

Remove the NotebookLM watermark from PDFs and images automatically.

Usage

/removing-notebooklm <file> [--output <path>]

Arguments:

• file (Required): Input file to process
  • PDF: Multi-page presentations (e.g., presentation.pdf)
  • PNG/JPG: Single images/infographics (e.g., infographic.png)
• --output (Optional): Custom output path (default: {name}_clean.{ext})

No argument = show this usage.

Environment Setup

This skill uses zero-footprint dependency management:

• Python scripts: Executed via uv run with PEP 723 inline metadata — no requirements.txt or .venv needed

Prerequisites (must be installed on the system):

• uv — https://docs.astral.sh/uv/

No per-project setup required. Dependencies are cached globally and resolved on first run.

Dependencies (declared inline in script)

• Pillow — Image processing
• pymupdf — PDF processing
• opencv-python — Inpainting algorithm
• numpy — Array operations

Command

Replace <plugin-path> with the actual path to this plugin's installation directory.

# Default output (adds _clean suffix)
uv run <plugin-path>/skills/removing-notebooklm/scripts/removing-notebooklm.py "<file>"

# Custom output path
uv run <plugin-path>/skills/removing-notebooklm/scripts/removing-notebooklm.py "<file>" --output "<output>"

Examples

/removing-notebooklm presentation.pdf
-> Creates presentation_clean.pdf

/removing-notebooklm infographic.png
-> Creates infographic_clean.png

/removing-notebooklm input.pdf --output final.pdf
-> Creates final.pdf

Output Format

Processing PDF: presentation.pdf
Pages: 12
  Page 1/12
  Page 2/12
  ...
  Page 12/12
Saved: presentation_clean.pdf

Done

How It Works

Watermark Specifications

Property	Value
Size	194 x 28 pixels (at 2x)
Position	Bottom-right corner
PDF margins	18px right, 16px bottom
Image margins	9px right, 10px bottom

Inpainting Algorithm

Uses OpenCV's Telea inpainting algorithm to seamlessly reconstruct the background:

• Creates a mask over the watermark area
• Propagates surrounding pixels into the masked region
• Works with complex backgrounds (textures, patterns, gradients)

Supported Formats

Type	Extensions	Processing
PDF	.pdf	All pages
Image	.png, .jpg	Single file

Behavior

1. Check argument: If no file provided, show usage and exit
2. Validate file: Check file exists and format is supported
3. Process file: Remove watermark using appropriate method
4. Save output: {original_name}_clean.{extension}

Notes

• Output file is saved in the same directory as input
• Original file is not modified
• Requires: uv installed on system
• No .venv created—dependencies cached globally by uv