How to Remove the NotebookLM Watermark From Your Slides (2026)

NotebookLM, which Google now also calls Gemini Notebook in parts of the product, can turn your sources into slide decks, infographics and Video Overviews. Those outputs carry a small visible mark. That is fine for a quick review, but less ideal when the slides go into your own lesson, client deck or class project.

Short answer: to remove the NotebookLM watermark from slides you created, first check whether your plan has Google's official Visible watermarking toggle (Google lists it for AI Pro and Ultra). For files you already exported, save each slide as a PNG or JPG, upload it to Clearframe's image watermark remover, brush over the corner mark and download the cleaned image.

Use these steps only on material you made or have permission to edit.

First, check the official watermark setting

Before editing any files, see whether Google lets you skip the mark entirely. According to Google's Gemini Notebook plans help page (checked October 2026):

• Watermark removal is listed for the Pro and Ultra plans, and not for the Standard (free) or Plus plans.
• Eligible Google One AI Pro and Ultra subscribers control it with the "Visible watermarking" toggle in the drop-down menu under their profile picture.
• If you live in India, South Korea or Vietnam, Google applies a visible watermark automatically.
• Invisible SynthID watermarks stay. Google says outputs generated with Veo, Omni or Nano Banana include invisible SynthID watermarks. The toggle only concerns the visible mark.

Plans and menus change, so trust what your own account shows. If you can use the toggle, it is the cleanest option: switch it off, then generate the deck or infographic again. A file you already downloaded won't change, so for older exports, keep reading.

Already exported? Clean the file as images

Clearframe edits images, not PDF or PowerPoint files. The workflow is to turn each slide into an image, clean it, and put it back.

1. Export your slides as PNG or JPG

• Google Slides: open the deck, then choose File → Download → PNG image or JPEG image. This saves the current slide; repeat for every slide that shows the mark.
• PowerPoint: choose File → Export (or Save As), pick PNG or JPEG, and choose to export every slide. PowerPoint saves one image per slide.
• A PDF on Mac: open it in Preview, choose File → Export, and set the format to PNG or JPEG. Do this one page at a time.

Use the highest resolution available. Upscaled screenshots give the inpainting model less real detail to work with.

2. Upload the slide to Clearframe

Open the NotebookLM watermark remover and upload one image. JPG, PNG and WEBP are supported.

3. Brush over the corner mark

Paint over the mark plus a thin ring of pixels around it, so you also catch the soft, semi-transparent edges. If you leave those edges unpainted, a faint outline can remain. Clearframe uses manual selection: you decide exactly which pixels it rebuilds.

4. Compare and download

Run the removal, then check the before-and-after view at full zoom. Look at the corner against gradients, photos or text near the edge. If the result looks soft, undo and try a tighter or slightly wider mask, then download the PNG.

5. Put the slide back into your deck

In Google Slides or PowerPoint, insert the cleaned image as a full-slide picture, or replace the background image of the slide. Keep your original NotebookLM export in case you need to make changes later.

Infographics and single images

Infographics are easier: they are already single images. Download the infographic in PNG or JPG, upload it, mask the mark and download the result.

Busy infographics sometimes place the mark close to icons or small text. Inpainting rebuilds plausible pixels, but it cannot recover text that the mark covered. If a label is partly hidden, check it carefully, or recreate that label in your editor.

The same approach works for other small marks you are allowed to remove, such as a sticker, logo or date stamp. See how to remove text from an image without Photoshop, or use the object remover for bigger distractions. For images from the Gemini app, there is a separate Gemini watermark remover page.

What about Video Overviews?

This is where you need to be realistic. Clearframe's video watermark remover is built for:

• MP4, MOV or WEBM files
• clips up to 30 seconds
• a mark that stays in one fixed position

The NotebookLM mark on a Video Overview sits in one place, which suits the tool. But Video Overviews usually run for several minutes, far beyond the 30-second limit. So Clearframe is only practical for short excerpts, like a 20-second clip to embed in a lesson slide or social post. Trim the excerpt first, then mark the corner once.

For a full-length Video Overview, the better route is the official toggle, if your plan has it, followed by generating the video again.

Use it on content you own

Clearframe's rule is simple: only remove marks from content you own or have permission to edit. A few points specific to AI output:

• Visible vs. invisible watermarks. Google says Gemini Notebook outputs made with certain models carry invisible SynthID watermarks. Clearframe only rebuilds the visible pixels you paint over. It does not remove SynthID or any other hidden identifier, and it isn't meant to.
• Don't misrepresent authorship. Removing a corner mark to make a slide look cleaner is one thing. Presenting AI-generated work as entirely your own, where your school or client requires disclosure, is another. Follow your institution's AI policy.
• Respect other people's work. Don't use this on decks or infographics that someone else made and shared with you, unless they gave you permission.

Quick checklist

1. Check for the official Visible watermarking toggle on your plan (Pro/Ultra per Google) and generate again if you can.
2. Otherwise, export slides as PNG/JPG at full resolution.
3. Upload to the NotebookLM watermark remover, brush the mark plus its soft edge, then compare.
4. Download the PNG and put it back in your deck.
5. For video, only process short excerpts (≤30 seconds, fixed mark).

Clearframe is free to try, with fair-use limits. Start with one slide and see how the corner holds up before you work through the whole deck.