IMAGE TOOL · NOTHING UPLOADED
Batch watermark your photos
Add a text watermark, corner or tiled, to many photos at once, with size, opacity and color. macOS has no batch watermark; this does. Free, nothing uploaded.
Add a watermark to images
How it works
Three simple steps
A quick overview before you start, the tool guides you through each step too.
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Add your photos
Drop in JPG, PNG, WebP or HEIC, they never leave your device.
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Set the watermark
Type your text, pick a position (or tiled), and tune size, opacity and color.
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Download
Apply to every photo at once and download each, or all as a .zip.
Questions & answers
Good to know
Common questions about size, privacy, and cost.
How do I watermark a batch of photos?
Add all the photos, type your watermark text, choose a position (a corner, center, or tiled across the whole image), then click Apply. Every photo is watermarked at once, entirely in your browser, nothing uploaded.
Does macOS have a batch watermark feature?
No, neither Finder nor Preview can batch-watermark images; you would need a paid app or an Automator script. This tool does it for any number of photos, free and locally.
What does "tiled" do?
Tiled repeats your text diagonally across the whole image, which is the hardest to crop out, good for proofs, drafts and protecting work you share online.
Can I control how visible it is?
Yes, adjust the size (as a percentage of the image), the opacity, and white vs. black text with a subtle contrasting shadow so it stays legible on any background.
Will it lower my image quality?
Only the watermark pixels change. Choose PNG output for a lossless result, or JPG (quality 92) for a smaller file.
Are my photos uploaded anywhere?
No. Watermarking happens entirely in your browser with the canvas API, nothing is sent to a server.
Does it cost anything?
No, it is completely free, no signup.
About
What Batch Watermark does
Add a text watermark, in a corner or tiled, across many photos at once. macOS has no batch watermark tool; Reamly does it in your browser with nothing uploaded.
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