UnMarkLMFrequently Asked Questions
UnMarkLM supports PDF files (slide decks), PNG images (infographics), and JPG/JPEG images from NotebookLM.
No. All processing happens entirely in your browser using JavaScript. Your files never leave your device. You can verify this by checking the Network tab in your browser's developer tools.
Yes, completely free with no limits. UnMarkLM is open source software.
UnMarkLM detects the NotebookLM watermark (typically bottom-right) and reconstructs the pixels underneath to hide it.
It only adjusts a small area near the watermark while keeping the rest of your content intact.
Yes. UnMarkLM is fully responsive and works on smartphones and tablets.
No. UnMarkLM is an independent open source project and is not affiliated with, endorsed by, or associated with Google LLC or NotebookLM in any way.
The tool is optimized for NotebookLM exports. It may also work on other files with a similar bottom-right badge position, but results can vary depending on the image background.
Upload your PDF directly to UnMarkLM. The tool automatically detects each page, locates the NotebookLM watermark badge at the bottom-right corner, removes it, and lets you download a clean PDF — all inside your browser with no uploads.
Yes. NotebookLM infographics are exported as PNG images. UnMarkLM detects the watermark position automatically and reconstructs the background pixels. Simply upload the PNG and download the clean version.
The maximum file size is 50MB per file. For multi-page PDFs, each page is processed individually so large documents are handled efficiently.
Yes. UnMarkLM supports batch processing — upload multiple files at once and download them all as a ZIP archive.
Results depend on the background behind the watermark badge. Solid or gradient backgrounds produce near-perfect results. Complex backgrounds with illustrations or textures near the badge may show slight differences.
NotebookLM automatically adds a small 'NotebookLM' badge to all exported infographics, slide decks, and PDFs. It appears at the bottom-right corner of every page or image.
Yes. NotebookLM slide decks are exported as PDFs. Upload the PDF to UnMarkLM and each slide will have the watermark removed automatically.
UnMarkLM works on all modern browsers: Chrome, Firefox, Safari, and Edge — on both desktop and mobile.