Image Watermark Adder
Add a text watermark to any image — choose position, opacity, and font size, then download as PNG.
How to use this tool
- 1Click the upload zone and select an image file.
- 2Enter your watermark text and choose a position from the dropdown (top-left, top-right, bottom-left, bottom-right, center).
- 3Adjust the Opacity slider (10-100%) and Font Size slider (12-120px).
- 4Click 'Download' to save the watermarked PNG.
About Image Watermark Adder
Protecting photos with a watermark before sharing them online is a standard practice for photographers and content creators. This tool renders a text watermark onto your image using the Canvas API with full control over five parameters: watermark text, position (top-left, top-right, bottom-left, bottom-right, or center), opacity (10-100%), and font size (12-120px). The text is drawn in white with a black outline so it's visible on both light and dark backgrounds. The Canvas measures the text width using measureText() to position it correctly at the chosen anchor point with a 20px padding from the edge. The preview is the live Canvas — what you see is what downloads. No file is uploaded. Photographers watermarking portfolio images, designers protecting mockups, and anyone sharing original content online are the primary users.
Frequently asked questions
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