Add watermark to photo
Add text or logo to the photo. Check location, size, and opacity, then save multiple photos with the same settings.
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Result
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Share result
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How to use and processing criteria
A process of placing the same text or logo on multiple photos at roughly the same positions.
Actual example
Width 1,000px: when selecting 30% size in a photo, the horizontal width of text or logo becomes approximately 300px. The lower-right position is placed about 3% from the edge of the photo, and relative size is recalculated for each photo.
Frequently Asked Questions
What file types can be used for logo images?
JPG·PNG·WEBP supports logo; up to 2MB·4 million pixels or less. Use PNG or WEBP for transparent background. Select characters/logos with permission to use
Will adding watermarks to multiple photos overwrite the original?
Keep the original image and create a new image or ZIP file. The preview shows the first image; all images can be viewed in the save result. Water marks are not a way to completely prevent unauthorized use or removal.
Calculation criteria and reference materials
- MDN — Canvas image drawing
Cutting, arranging, and rendering new image pixels for the original area
Verification of calculation criteria: · Calculation·verification principles · Report errors