Watermark Video

What Watermark Video helps you do

Add a text or logo watermark to a video with control over position, size, colour and opacity. It is useful for marking drafts, protecting review copies and putting a brand on clips that will be shared. The watermark is drawn into every frame, so it becomes part of the picture and cannot be switched off by the viewer.

Compositing and encoding happen locally in your browser. Neither the video nor the logo is uploaded to Haivix.

How it works

Each decoded frame is drawn to a canvas, the watermark is composited at the chosen position and scale, and the combined frame is encoded again. A transparent PNG or WebP logo works best because its alpha channel blends with the footage. The audio track is copied when the output container supports its codec, otherwise it is re-encoded. Because the operation is per frame, the cost grows with the duration and the resolution of the clip.

How to use Watermark Video

1. Load the video and add either a text watermark or a logo image.
2. Set the position, size, colour and opacity.
3. Enable tiling if the mark should repeat across the frame.
4. Scrub the preview to check readability over light and dark scenes.
5. Start the export and wait for the re-encode.
6. Download the watermarked copy and keep the clean original.

When to use it

• Mark a rough cut before sending it for review.
• Add a brand or handle to a clip that will be reposted.
• Deter unauthorised reuse of a sample or preview.
• Label a draft as internal or confidential.
• Place a small logo in a consistent corner across a series.
• Mark a client review copy before final delivery.
• Add a copyright line to a portfolio sample.

When not to use it

• Do not use a watermark as a substitute for licensing or access control.
• Avoid burning a mark into a master file you may need clean later.
• Do not expect the mark to survive a heavy crop in another tool if it sits near the edge.

Example

A freelancer sends a client a five-minute preview with a semi-transparent handle in the lower third. The mark is readable on both the light and dark scenes, and the clean master stays private until the invoice is paid.

What you can do with Watermark Video

• Add text with a chosen colour and opacity.
• Place a PNG or WebP logo with transparency.
• Scale the mark relative to the video width.
• Tile the watermark across the whole frame.
• Position it in any corner or the centre.
• Keep the audio track with the video.
• Preview the mark over a frame before exporting.

Example workflow

Watermark after cropping and before publishing. If the clip still needs a reframe, do that first so the mark is placed against the final composition.

Keep the clean master in a separate folder. Once a mark is burned in, removing it requires a new export from the original.

For a series, reuse the same corner, size and opacity so the mark reads as part of the brand rather than a last-minute addition. Consistency also saves you from re-checking readability on every episode.

What to know before you start

• Watermarking re-encodes the video and introduces a small quality loss.
• The mark is permanent in the exported pixels.
• Tiling ignores the position selector.
• The logo must be supplied by you; there is no logo library.
• A very small or low-opacity mark can disappear on busy footage.
• The tool does not remove an existing watermark.

Common mistakes

• Placing a dark mark on a dark scene with no outline.
• Making the watermark so large that it covers the content.
• Burning a mark into the only copy of a master.
• Forgetting that tiling overrides the chosen position.
• Using a JPEG logo, which has no transparency and leaves a visible box around the mark.

Troubleshooting

If the mark is hard to read, increase the opacity or add contrast between the text and the footage. A subtle shadow or a solid background helps on busy scenes.

If the logo looks blocky, use a larger PNG rather than scaling up a small one.

If the export is slow, the video is being re-encoded frame by frame. Trimming to the section you need first reduces the work.

If the watermark flickers on thin lines, the source logo may have a semi-transparent edge that the encoder handles differently from frame to frame. Export at a higher quality or simplify the artwork.

Related standards and documentation

• PNG (ISO/IEC 15948) supports the alpha channel used for transparent logos.
• H.264/AVC is the common codec for the watermarked MP4 output.