NotebookLM Watermark Remover
Instantly erase the NotebookLM watermark from PDF documents, PowerPoint slides, and exported images.
100% free, browser-based, and completely private — your files never leave your device.
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Drop Your NotebookLM File Here
What is the NotebookLM Watermark?
When you export a PDF or PPTX presentation from Google NotebookLM, a subtle transparent watermark and barcode pattern is automatically added across your pages and slides.
Our NotebookLM Watermark Remover scans your document locally inside your browser and cleans the watermark with zero quality loss — keeping your privacy intact.
如何运作
Upload Your File
Auto Detection
The engine scans all pages and slides locally in your browser to precisely locate the NotebookLM watermark text and barcode pattern.
IDW Pixel Healing
Our advanced Inverse Distance Weighting algorithm seamlessly reconstructs the background — works on gradients, textures, and solid colors with zero visible artifacts.
Download Clean File
Download your fully clean PDF, PPTX, or PNG file instantly. No account needed. No waiting. No server uploads.
强大功能
PDF Multi-Page Cleaning
Renders each PDF page at 2x resolution, precisely detects watermark coordinates via PDF.js text extraction, and heals the canvas pixel-by-pixel before recompiling to a clean PDF.
PPTX Template-Level Removal
Cleans watermarks from PPTX slide XML, slide layouts, and slide master templates. Catches picture-based watermarks via alt-text matching — even when there's no selectable text.
Heals watermarks from standalone JPG/PNG/WebP images and from embedded slide background images inside PPTX archives using IDW canvas inpainting for flawless results.
Smart Barcode Pattern Detection
NotebookLM watermarks include a vertical barcode-like separator to the left of the text. Our engine accounts for its full width with expanded padding to capture it 100% cleanly.
No file is ever sent to any server. All processing runs entirely inside your browser using JavaScript Canvas APIs. Your documents stay completely private.
Cross-Platform Browser Support
Works on all modern browsers — Chrome, Firefox, Safari, Edge — across Windows, Mac, Android, and iOS. No extensions or plugins required.
为什么选择我们？
速度
处理在毫秒内完成。
质量
零压缩伪影添加。
简单
无需技术技能。
隐私
文件保留在您的设备上。
免费
永远无订阅。
适用人群
内容创作者
清理 AI 生成的资产用于 YouTube 缩略图。
学生
将干净的图像用于学校项目。
平面设计师
从参考图像中移除干扰。
营销团队
准备干净的视觉效果用于演示。
开发者
测试图像处理工作流。
数字艺术家
无缝地将 AI 元素融入您的艺术作品。
100% 安全且本地处理
我们尊重您的隐私。与将照片上传到远程服务器的其他工具不同，Gemini Watermark Remover 完全在您的浏览器中运行。
常见问题
这个工具真的免费吗？
是的，完全免费。没有限制。
我可以一次处理多张图片吗？
是的，我们的工具支持批量处理。您可以同时上传并清理多张 Gemini 图片。
我的数据安全吗？
您的隐私是我们的首要任务。离线 AI 技术。
在手机上能用吗？
是的，Gemini Watermark Remover 完全响应式。
什么是 Gemini SynthID 和 Nano Banana 水印？
SynthID 是 Google DeepMind 的隐形数字水印，而 Nano Banana 水印是指可见的标志徽章。我们的工具可以无缝检测并清除它们。
浏览器原生的 AI 局部修复 (Inpainting) 技术是如何工作的？
我们的引擎利用客户端 WebAssembly 和 Canvas API 在本地重建像素，无需上传任何文件到服务器。
会降低图片质量吗？
不会。我们的算法仅针对水印像素。
Do I need to create an account?
No account, no email, and no sign-up is required. The tool works instantly for guest users. Signing in with Google optionally unlocks a higher daily limit and processing history.
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