Load your file
Even the moment you pick a file, the data never leaves your browser.
Batch-process the watermark on multiple NotebookLM infographic images locally and check them in a preview.
Supports JPEG / PNG / WebP (under 300MB each, 20 max)
Everything runs in your browser's memory. Very large files can crash the tab, especially on phones — keep inputs small.The known watermark region is inpainted on a canvas and exported in your chosen format at the original resolution.
Formats PNG / JPEG / WebP


No account, no upload queue. Done in three steps.
Even the moment you pick a file, the data never leaves your browser.
A dedicated engine for videos, documents, and images handles the watermark area.
Get the result you previewed as a local file, not a server link.
Tuned to the exact watermark position and size that each NotebookLM and Gemini format uses.
File data is only read and written in the browser memory you're using right now.
Creates the output right on your device instead of an expiring external link.
No. Every processing engine and all file data run inside your browser.
Yes. The output matches the original resolution; only the watermark region is reconstructed.
Yes, up to 20 images in a batch, with a ZIP download.
Known NotebookLM infographic layouts with a bottom-right watermark.