Watermark Tool
Add text or logo watermarks to photos in batch. No upload needed. Download all as ZIP.
Preview
Drop images here or click to browse
JPG, PNG, WebP — up to 20 files
About Watermark Tool
Watermarks protect your creative work by visually asserting ownership before you share images publicly, upload to stock platforms, or deliver previews to clients. An effective watermark is visible enough to deter unauthorized use but unobtrusive enough that it does not destroy the viewing experience of the image itself — a balance that depends on placement, opacity, size, and whether you choose a text-based or logo-based watermark.
Our Watermark Tool processes up to 20 images simultaneously in your browser using the Canvas API, applying consistent watermark settings across the entire batch. Use text-based watermarks (your name, copyright notice, website URL) with a choice of five typefaces — sans-serif, serif, monospace, cursive or bold — any size from 12 to 120 pixels, and any colour you like. Text is drawn with a soft dark shadow behind it, which is what keeps light lettering readable over bright areas of a photo without adding a visible box. Or upload a PNG logo with transparent background for brand-logo watermarking, scaled to anywhere between 5% and 50% of the image width.
A nine-square grid places the watermark in any corner, along any edge, or dead centre, with a padding slider setting the gap from the edge between 0 and 60 pixels, and opacity adjustable from 10% to 100%. A live preview shows your settings applied to the first image in the batch — or to a generated sample image before you have uploaded anything — and updates as you drag the sliders, so you can dial in the look before committing to the whole set.
Tile mode is particularly effective for high-value images: covering the entire frame with a repeating watermark pattern at reduced opacity makes the watermark essentially impossible to crop out while still showing the image. Output keeps the format you put in — a PNG comes back a PNG and a WebP a WebP, both with transparency intact, while a JPG stays a JPG — and each file is named with a wm_ prefix so watermarked copies never overwrite your originals. All processing runs locally: your original images are never uploaded to any server, maintaining complete privacy for client previews or unreleased work.
How to Use Watermark Tool
- 1Drop your photos on the upload area or click to browse — up to 20 JPG, PNG or WebP files at a time.
- 2Choose between Text watermark (type your name or copyright notice) or Image / Logo (upload a PNG).
- 3Set the watermark position on the nine-square grid — any corner, any edge, or centred — or switch on Tile mode to cover the full image.
- 4Adjust opacity (40–60% is typically best), size, and padding using the sliders.
- 5Watch the live preview, which shows your settings on the first image in the batch, or on a sample image before you upload anything.
- 6With several images loaded, click "Download All as ZIP"; with a single image, click "Download" — or use the small download icon on any one file to save just that one.
Use Cases
- →Protect portfolio or stock photos before sharing online or sending previews to clients
- →Brand product images in bulk with your logo before publishing to an e-commerce store
- →Add a copyright notice to photos before posting them to social media
- →Apply tiled watermarks to sensitive or high-value images to prevent unauthorized cropping
- →Watermark a batch of event photos before delivering them to clients as proofs
- →Add a draft or confidential text overlay to document images shared for review
Tips
- ✓Use a PNG logo with a transparent background for the cleanest, most professional results
- ✓Set opacity between 40–60% for a professional look that is visible but non-intrusive
- ✓Tile mode creates a repeating pattern that is much harder to crop or clone-stamp out
- ✓Bottom-right corner is the most common and expected watermark position in photography
- ✓White text with a slight dark shadow works on most image backgrounds without visibility issues
- ✓Test the watermark preview on your lightest and darkest images to ensure contrast is sufficient
- ✓The shadow behind the text is applied automatically, so white lettering stays legible over a bright sky without an outline box
- ✓Every watermarked file is saved with a wm_ prefix, so the output never overwrites the original
- ✓Output keeps its input format: PNG stays PNG and WebP stays WebP, both keeping transparency, while JPG stays JPG
- ✓The batch caps at 20 images — process a large shoot in several passes, the settings stay put between them
- ✓The live preview follows the first image in the batch, so put your most difficult photo first when judging contrast
- ✓Logo size is set as a share of the image width, from 5% to 50%, so a mixed batch of portrait and landscape files stays visually consistent
- ✓In Tile mode the padding slider shifts where the repeating pattern starts rather than setting a margin, so nudge it to stop a tile landing on your subject's face
- ✓Bold and monospace read as the most deliberate typefaces for a copyright line; cursive is best kept for signature-style marks
Frequently Asked Questions
No. All processing happens locally in your browser using the Canvas API. Your files never leave your device.
JPG, PNG, and WebP. The output keeps the format you put in: PNG stays PNG and WebP stays WebP — both with transparency intact, in any current browser — while JPG stays JPG.
Text watermarks are drawn with a soft dark drop shadow behind them, which keeps light-colored text legible over bright areas without adding a visible box. White text at 40–60% opacity is the usual starting point; over very light images, switch the color to near-black instead of fighting the background.
Yes. Switch to the Image / Logo tab, upload any PNG or image file, then adjust size (5–50% of image width) and opacity.
Tile mode repeats the watermark across the entire image in a grid pattern, making it much harder to crop out.
Up to 20 images per batch. Each is processed individually and can be downloaded separately or all at once as a ZIP file.
The first image in your batch — or a generated sample image if you have not uploaded anything yet. Whatever settings you see applied there are applied identically to every file in the batch.
Padding sets the distance in pixels between the watermark and the edge of the image. Applies to all 9 corner/edge positions.