Your files
How it works
1 · Drop your export
Add the PDF, PPTX or image you exported from NotebookLM. It opens instantly — nothing leaves your device.
2 · Auto-detect & clean
The bottom-right “NotebookLM” logo is located by contrast analysis and reconstructed from the surrounding background (inpainting), not just boxed over.
3 · Download
Preview before/after and save the cleaned file in the same format.
FAQ
Are my files uploaded?
No. All processing runs in your browser using WebAssembly (OpenCV) and Canvas. You can go offline after the page loads and it still works.
Which formats work?
PDF slides, PNG/JPG/WEBP images, and PPTX (beta — cleans watermarks baked into slide images). Output keeps the same format.
Will it always be perfect?
The watermark is baked into pixels. On plain or gradient backgrounds it reconstructs cleanly; on busy backgrounds a faint trace can remain. PDFs are rasterized during cleaning, so selectable text becomes an image.
Does it remove SynthID?
No. This edits the visible logo only. Invisible AI provenance watermarks such as SynthID are not targeted and are left untouched.