notebooklm-pdf-cleaner

# 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