Where Exactly Is the NotebookLM Watermark? Position & Size Guide

A Technical Map of Every NotebookLM Watermark

The NotebookLM watermark isn't in the same place — or even the same form — across export formats. In a video it's a logo overlay; in a PDF it's a text badge; in a Gemini image it's a sparkle glyph. If you're trying to remove it manually, or just curious how automated tools find it, this is a complete reference for where the watermark sits and how big it is in each format.

One thing is consistent across all formats: the watermark lives in the bottom-right corner. Everything else — exact coordinates, size, how it's embedded — varies. Let's go format by format.

Video Overviews

In NotebookLM 1080p video, the watermark logo sits at x=1104, y=656 measuring 770×62 px; in 720p video it sits at x=736, y=437 measuring 513×41 px — always bottom-right. A separate "Made with Google" end card fills the final 2.5 seconds. Both are removed via FFmpeg delogo plus tail trim.

NotebookLM video exports carry two watermark elements:

1. A persistent logo overlay in the bottom-right corner, visible throughout the video
2. A "Made with Google" end card filling the final 2.5 seconds

The logo overlay sits at fixed pixel coordinates that depend on the video resolution:

Resolution	X, Y (top-left of watermark)	Width × Height
1080p (1920×1080)	x = 1104, y = 656	770 × 62 px
720p (1280×720)	x = 736, y = 437	513 × 41 px

Because these coordinates are fixed, the video watermark remover can apply FFmpeg's delogo filter precisely without you having to draw a box around it.

PDF Slides

When NotebookLM exports a slide deck as PDF, each page gets a small "NotebookLM" text badge in the bottom-right corner. Unlike video, the exact pixel position varies slightly with page dimensions and rendering scale, so removal tools detect it dynamically rather than relying on fixed coordinates.

The detection scans roughly the bottom-right 22% width × 8% height of each page, identifies the dark watermark text against the background, and removes it. Pages are rendered at 2x resolution before processing to preserve quality. You can run this on your own file with the PDF slides watermark remover.

PPTX Presentations

In PPTX files, the watermark is baked into the background image of each slide — it lives inside the ppt/media/ folder of the PPTX archive, not as a separate text box you can click and delete. It sits in the bottom-right of each slide image.

For NotebookLM's standard slide export resolution (1536×2752 or 2752×1536 depending on orientation), the watermark occupies a fixed region of roughly 216 × 44 px at the bottom-right. For other resolutions, it's located by connected-component detection. Drop your deck into the PPTX watermark remover to clean every slide, or see our PPTX removal guide for the full process.

Infographics

NotebookLM infographics are exported as PNG or JPG images with a "NotebookLM" text stamp in the bottom-right. The watermark detection here is adaptive:

• Scan region: bottom-right corner, sized relative to the image (about 22% of width, 8% of height, with sensible minimums)
• The tool estimates the background brightness, then isolates pixels significantly darker or lighter than the background (the watermark text)
• Connected components are grouped and filtered by size, aspect ratio, and vertical position to avoid false positives
• The detected region is filled with a vertical gradient sampled from the pixels directly above and below it

The infographic watermark remover runs this detection automatically in your browser.

Gemini Images

The Gemini image watermark is a four-pointed sparkle "✦" in the bottom-right corner. On images with a short side ≤1024px it measures 48×48 px with a 32px margin; on larger images it measures 96×96 px with a 64px margin. Because it uses alpha blending at known coordinates, it is removed losslessly via alpha reversal.

Gemini-generated images carry a different watermark entirely: a four-pointed sparkle "✦" in the bottom-right corner. Its size and margin depend on the image resolution:

Image short side	Sparkle size	Margin (right, bottom)
≤ 1024px	48 × 48 px	32px, 32px
> 1024px	96 × 96 px	64px, 64px

Because the sparkle is applied with alpha blending at known coordinates, it can be removed losslessly via alpha reversal — a different and more precise technique than the gradient-fill used for text watermarks.

Quick Reference Table

Format	Watermark type	Position	Removal method
Video	Logo overlay + end card	Fixed coords, bottom-right	delogo + trim
PDF	Text badge	Bottom-right, per page	Detect + gradient fill
PPTX	Embedded image mark	Bottom-right, ~216×44px	Detect + gradient fill
Infographic	Text stamp	Bottom-right, adaptive	Detect + gradient fill
Gemini image	Sparkle ✦	Bottom-right, 48 or 96px	Alpha reversal (lossless)

Why Is It Always Bottom-Right?

The bottom-right corner is the conventional placement for branding watermarks across the industry — it's where the eye lands last when reading left-to-right, top-to-bottom, so it marks the content without dominating it. Google follows this convention consistently across NotebookLM and Gemini, which is exactly what makes automated removal reliable: the tool knows where to look.

Removing the Watermark

Now that you know where each watermark lives, removing it is one step. The NotebookLM Remover handles all five formats automatically — it detects your file type, locates the watermark using the logic above, and removes it entirely in your browser. No upload, no account, free.

Frequently Asked Questions

Can I remove the watermark by just cropping the bottom-right corner?

You could, but you'd lose real content and end up with non-standard dimensions — especially bad for video and slides where the watermark overlaps the frame. Targeted removal (delogo, gradient fill, or alpha reversal) cleans only the watermark while keeping the full image intact.

Do the video coordinates ever change?

Google has used consistent watermark coordinates since the Video Overviews launch. If they change, the removal tool is updated to match. Always remove the watermark from the original export — re-encoding or resizing first will throw off the coordinates.

Why does the Gemini sparkle use two different sizes?

Google scales the sparkle to the image resolution so it stays visually proportional — a 48px sparkle on small images, 96px on large ones. The removal tool detects which size applies from the image's short side and picks the matching alpha template.