About NotebookLM Watermark Remover

What this site does

NotebookLM Watermark Remover removes the "Made with NotebookLM" badge that Google's NotebookLM stamps onto its exports, so the file can be presented, printed or shared with a client without the source label sitting in the corner of every slide.

There is one job and three formats. Slide Deck PDF and Slide Deck PPTX are handled by two different pipelines on this site, and Video Overview (MP4) by a third. There is no account wall before processing, no plugin to install, and no upload step: each page loads its engine into your browser and does the work there.

How the removal works, step by step

The slide tools share the same idea — NotebookLM stamps the badge in the same bottom-right position on every slide, so the tool targets that fixed region instead of guessing — but the output path differs by format.

PDF slide decks

1. The PDF is read locally with PDF.js, the same open-source engine Firefox uses to display PDFs.
2. Every page is rendered to a canvas at 2× scale, so the patched area keeps enough resolution to stay sharp on a projector.
3. The badge region — 210 × 40 pixels at the reference scale, 15 pixels in from the right and bottom edges — is repainted with background pixels sampled from around it, blended at partial opacity so gradients and slide backgrounds do not show a rectangle.
4. The cleaned page images are reassembled into a new PDF with jsPDF, keeping the original page order and aspect ratio.

PPTX slide decks

1. The .pptx file is a ZIP of XML plus the exported slide images; the tool reads it in memory and locates the page image behind each slide.
2. Each image is decoded, repaired with the same bottom-right geometry, and re-encoded in its original format — PNG images losslessly, JPEG images at high quality.
3. Because the punch-out is written back over the existing image part, the slide XML is untouched: speaker notes, animations, transitions and the layout all survive, and the deck stays editable in PowerPoint.

Video overviews

1. The MP4 you provide is decoded in the browser and the on-video watermark is covered frame by frame.
2. The generic NotebookLM outro card at the end of the video (usually the final 2–3 seconds) is detected and trimmed.
3. The result is re-encoded as the file you download.

Nothing in those lists sends a file anywhere. The only network requests are for the page itself and the open-source libraries above, served from a public CDN.

What it does not do

Being precise here saves everyone time:

• It is not OCR and it does not rewrite text. The badge is patched at the pixel level. Anything the badge overlapped is gone — it cannot be recovered, because the export never contained it.
• The PDF output is not vector. The cleaned PDF is a page-image PDF at 2× render scale: identical on screen and in print, but not a re-editable vector document. If you need to change the text afterwards, clean the original .pptx with the PPTX tool instead — it repairs the slide images in place, so the deck stays editable.
• It does not remove other watermarks. Third-party site logos or stock-photo watermarks are out of scope, and so are files NotebookLM did not produce.

Your files and your data

• Files never leave your device. Processing happens in your browser tab, for all three formats. We have no server endpoint that accepts document uploads.
• When you download, one small record is stored: file name, file size, a one-way fingerprint of the file, which tool was used, the credits charged, and the timestamp. That record exists so a download is charged exactly once and so billing questions can be answered. It does not let us reconstruct the document.
• No page images, no extracted text and no slide content are stored. Ever.

The full detail is in our Privacy Policy.

Pricing, in plain numbers

• Processing is free and unlimited. You can clean the same deck as many times as you like without spending anything.
• Each download costs 10 credits for a slide deck (PDF or PPTX) and 20 for a video.
• Credits are sold in one-time packs. There is no subscription, and purchased credits never expire. Every pack also adds bonus credits with a limited validity, shown at checkout — see the pricing page for current pack sizes and prices.
• New accounts get free credits after email verification; the current amount and validity are on the pricing page, so you can try a download before paying.
• Sign-in is required only at download time, not to use a tool.

Who runs this

This is an independent, small-scale project built around one recurring annoyance: exporting a NotebookLM slide deck and finding a Google badge on every page. It is funded entirely by credit purchases — there are no ads on the tools themselves and no data sale of any kind. We are not affiliated with, endorsed by, or sponsored by Google. NotebookLM is a trademark of Google LLC, and the name is used here only to describe what the tools are compatible with.

How to reach us

Questions, bug reports and refund requests go to daokunge@gmail.com, or through the contact page — both reach the same inbox. If something looks wrong with a cleaned file, send the original file and we will reproduce it.