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Video Watermark Adder

Burn text watermarks into a video with 5 position presets (bottom-right default, fixed 24px white on semi-transparent black box). Brand one clip at a time — local FFmpeg work, unlimited saves.

100% Local Browser Native

How to Use the Video Watermark Adder

1. Upload the video

One clip to brand — any video format.

2. Set text and position

Watermark text (default Toolzum.ai) with bottom-right, bottom-left, top-right, top-left, or center.

3. Download watermarked

Save the file (downloads are unlimited).

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Frequently Asked Questions

Text or logo watermark?

Text only in this tool: episode numbers, URLs, and brand names burn via the drawtext filter at fixed 24px white on a semi-transparent black box. For logo overlays, use the Video Filters pipeline or a desktop editor instead.

Where should watermarks sit?

Bottom-right corner (the default): visible without blocking faces or captions. Center marks deter theft best but annoy viewers — reserve for paid content.

Does watermarking re-encode?

Yes — the drawtext filter re-encodes video while audio copies untouched, so expect export times like normal conversion. Keep masters archived; distribute watermarked copies. If export fails, FFmpeg WASM may lack FreeType font support in your browser.

Do branded videos upload?

No — watermarking runs locally in your browser with FFmpeg. Saves never touch a meter — downloads on local tools are unlimited.

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Last updated October 2026