Watermark & Overlay
Text Overlay
Add styled text to images with control over font, size, color, shadows, outlines, backgrounds, and positioning. Create social media graphics, annotated screenshots, and labeled images directly from your self-hosted instance.
Features
- Custom font, size, color, and alignment
- Text shadow, outline, and background box
- Multiple text blocks per image
- Positioning by coordinates or drag-and-drop
- Supports Unicode and multi-language text
What you can do
- Add captions and titles to social media images
- Annotate screenshots with labels and callouts
- Create promotional banners with text overlays
- Label diagrams and architectural photos with descriptive text
Self-hosted. Your images never leave your network.
SnapOtter runs entirely on your own infrastructure. Images processed with Text Overlay are never uploaded to third-party servers. Deploy a single Docker container and process images with full privacy, no watermarks, and no usage limits. Open source under AGPL-3.0.
Frequently asked questions
- Can I add multiple text blocks to one image?
- Yes. Add as many text blocks as needed, each with its own font, size, color, and position. This is useful for creating social media graphics with titles and subtitles.
- What fonts are available?
- SnapOtter includes a set of common web fonts. The available fonts depend on what is installed in your Docker container. You can extend this by mounting additional font files.
- Can I add text with a background box behind it?
- Yes. Enable the background option to add a colored rectangle behind your text. You can control the background color, opacity, and padding. This improves readability when placing text over busy images.
Ready to try Text Overlay?
Deploy SnapOtter in under a minute. All 50+ tools included. Open source and free forever.