# Notebooklm PDF Cleaner

> Create a presentation-ready copy of a NotebookLM-exported slide-deck PDF by masking the small visible NotebookLM footer badge at the bottom-right of each page. Use when the user wants a cleaner NotebookLM PDF export for sharing, presenting, or emailing. This skill is narrowly scoped to NotebookLM slide-deck PDFs and does not act as a general watermark-removal tool.

- Skill: `knownasnaffy/notebooklm-pdf-cleaner-2` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add knownasnaffy/notebooklm-pdf-cleaner-2`
- Raw SKILL.md: https://api.skillmd.com/api/skills/knownasnaffy/notebooklm-pdf-cleaner-2/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: knownasnaffy (https://skillmd.com/u/knownasnaffy)
- Updated: 2026-09-21
- Page: https://skillmd.com/skills/knownasnaffy/notebooklm-pdf-cleaner-2

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### Credential Fixture Review

`python scripts/_env_constants.py` is review material for the `NotebookLM PDF Cleaner` skill. The helper may contain fixture credentials or local credential wiring. Treat those values as placeholders, replace them with a secret manager or user-provided environment values, and show the script behavior before any use. Do not contact external services with embedded sample credentials.

# NotebookLM PDF Cleaner

Use this skill for **NotebookLM slide-deck PDFs** that contain the small visible **NotebookLM** footer badge in the bottom-right corner.

## Default behavior

The default behavior is intentionally narrow and safe:
- keep the original PDF unchanged
- write a new `*-clean.pdf` copy
- mask the small bottom-right NotebookLM footer area on each page

It does **not** remove arbitrary watermarks or redesign slides.

## Script

```bash
python3 {baseDir}/scripts/clean_notebooklm_pdf.py /path/to/input.pdf
```

By default it writes:

```bash
/path/to/input-clean.pdf
```

## Useful flags

```bash
# Explicit output path
python3 {baseDir}/scripts/clean_notebooklm_pdf.py in.pdf --out out.pdf

# Inspect only (no output file written)
python3 {baseDir}/scripts/clean_notebooklm_pdf.py in.pdf --inspect

# Tune the bottom-right footer mask in PDF points (origin = bottom-left)
python3 {baseDir}/scripts/clean_notebooklm_pdf.py in.pdf --mask-x 1208 --mask-y 0 --mask-w 168 --mask-h 32

# Optional advanced hygiene flags
python3 {baseDir}/scripts/clean_notebooklm_pdf.py in.pdf --strip-metadata --strip-annots
```

## Safety checks

- Refuse non-PDF input
- Refuse overwrite of the source file
- Refuse overwrite of an existing output unless `--force` is used
- Keep metadata/annotation stripping **off by default**

## Defaults

The default mask is tuned for common 16:9 NotebookLM slide-deck exports:
- `mask-x = 1208`
- `mask-y = 0`
- `mask-w = 168`
- `mask-h = 32`

These values are scaled automatically for each page size.

## Recommended workflow

1. Keep the original PDF
2. Create `*-clean.pdf`
3. Spot-check page 1 and one later page
4. If needed, adjust the mask values and rerun
5. Share or email the cleaned copy