How to Add a Watermark to Video Online (Text or Image)

Protecting brand footage, crediting creators, or labeling drafts often requires a visible overlay. Add Video Watermark places text or PNG/JPG logos at a position and size you choose, with optional timeline segments - exported as Fast-Start MP4 on your device.

Text vs image watermarks

For hiding someone else's logo, see Remove Video Watermark (blur cover). For adding your own mark, use this tool.

Step-by-step: add a watermark

1. Open Add Video Watermark and load the video from your device.
2. Choose Text or Image mode.
   • Text: enter copy, font, size, color, opacity, horizontal/vertical layout.
   • Image: upload PNG/JPG (PNG for transparency).
3. Drag the box on the preview to position and size the watermark.
4. Scrub the timeline - add segments if the mark should appear only during certain ranges.
5. Click Apply & Download when preview looks correct.

Processing is local. Output uses Fast-Start MP4 for web-friendly playback.

Timeline segments

Default coverage is the full video. To show a watermark only in intro/outro:

• Add segment on the watermark timeline
• Drag edges to match visibility window
• Reposition box per segment if needed

Useful for episodic bugs or sponsor slates that should not cover the entire runtime.

Safe zones across aspect ratios

The same corner bug that clears YouTube's horizontal player may sit under UI chrome on 9:16 Shorts or 1:1 crops. Leave extra margin from the bottom-right (duration badges) and top-right (platform overlays) when you plan to reuse one master export across formats.

If you publish both landscape and vertical cuts, watermark the landscape master first, then Crop Video or Social Media Resize for derivatives — repositioning per aspect in the editor beats baking a mark that gets clipped on mobile.

Draft vs final watermarking

Client review copies often need obvious SAMPLE or NOT FOR DISTRIBUTION marks. Use high-contrast text segments on intro and outro only so stakeholders can watch without obstruction.

Final channel exports should switch to a subtle corner bug at 70-80% opacity — export a separate pass rather than re-encoding the sample version in place. Keep the unmarked master archived if the contract requires clean delivery later.

White logos on light footage disappear — add a thin dark stroke in your PNG source instead of maxing opacity in the tool.

Animated lower-thirds are out of scope — export static bugs here; motion titles belong in Resolve or Premiere.

Legal and brand considerations

Watermarks deter casual re-uploads but do not replace copyright registration. Use them to identify channel brand, draft status ("SAMPLE"), or ownership on client review copies.

For platform-native logos (YouTube subscribe bug), mimic placement but respect each platform's brand guidelines - ALTools does not inject platform UI, only your custom text or image.

Design tips

• Opacity 70-85% - readable but less distracting on busy footage
• Corner placement - standard for brand bugs; avoid covering faces
• PNG logos - crisp edges on dark and light backgrounds
• Font choice - load local fonts in supported browsers for brand typefaces
• Export once - repeated watermark passes add generation loss

Common issues

Watermark too small on mobile. Test at phone scale - increase font size or logo width.

Font missing glyphs. Pick a font with your language's characters or use an image logo.

Image looks pixelated. Upload a higher-resolution PNG; do not upscale tiny assets.

Segment misaligned. Scrub each range and reposition the box.

Frequently asked questions

Can I animate the watermark?

No - position is static within each segment. For motion graphics, use a video editor.

Does watermark survive re-upload to social platforms?

Yes visually, but platforms may re-encode - start from a high-quality source.

Related tools

• Remove Video Watermark - blur unwanted overlays
• Crop Video - reframe instead of overlay
• Compress Video - reduce size after branding