Product photos, artwork, real estate shots and portfolio images get copied. Competitors lift them for their own listings, resellers use them without permission, and photos travel around social media without credit. A watermark does not make copying impossible, but it makes the owner obvious, makes a stolen photo less useful, and turns shares into free promotion for your name.
The tedious part is adding it to every photo. This watermark maker applies the same text or logo to up to 300 photos in one run, scaled to each photo's width so mixed sizes still look consistent, and gives you a ZIP. Everything happens in your browser: your photos and your logo are never uploaded.
How to watermark photos in bulk
- Drop your photos into the box above, or click it to choose them. JPG, PNG, WebP and AVIF work, up to 300 at once.
- Choose Text or Logo image. For text, type it (for example © Your Brand or your website), pick a font and color, and keep Soft shadow on. For a logo, click Choose logo and pick a PNG or SVG with a transparent background.
- Pick a position on the 3 by 3 grid, such as bottom right, or tick Tile across the whole photo for a repeating pattern.
- Set the Size (width of the mark as a percentage of the photo width), Opacity, Distance from the edge or Space between tiles, and the Angle.
- Click thumbnails under the preview to check how the mark looks on different photos.
- Choose the format and quality, then click Watermark all and download ZIP. To save just the photo in the preview, click This photo only.
Each saved file keeps its name with -watermarked added, so you never overwrite the originals.
Corner mark or tiled pattern?
| Corner or center mark | Tiled across the photo | |
|---|---|---|
| Protection | Light: easy to crop out of a corner | Strong: covers the whole image |
| Look | Clean, professional, the photo stays the hero | Busy, clearly a proof copy |
| Typical settings | Size 15 to 30%, opacity 40 to 70%, angle 0 | Size 20 to 35%, opacity 15 to 30%, angle minus 30 |
| Best for | Social posts, your own website, portfolio images, product photos you want shared | Proofs for clients, unreleased designs, digital products, preview images of printables |
A center mark is a middle ground: harder to crop than a corner and less busy than a tile. Use it at 30 to 50 percent opacity and 35 to 50 percent size.
Settings explained
- Size is the width of the watermark as a share of each photo's width, from 5 to 90 percent. A 28 percent mark is 560 pixels on a 2,000 pixel photo and 280 pixels on a 1,000 pixel photo, so it looks the same on both.
- Opacity from 5 to 100 percent. Lower values are subtle; higher values protect more but distract more.
- Distance from the edge is a share of the photo's shorter side, 0 to 15 percent. Three percent keeps the mark off the very edge, where social apps sometimes crop.
- Space between tiles controls how dense a tiled pattern is. Rows are offset like bricks, so there are no clear gaps to crop between.
- Angle from minus 90 to 90 degrees. Ticking Tile sets minus 30 degrees automatically, a classic diagonal; you can change it.
- Soft shadow (text only) adds a gentle dark glow so white text reads on bright parts of photos and dark parts alike.
Text or logo?
Text is quick and readable: your shop name, website or Instagram handle tells people where the photo came from. Use a short line; a website address is the most useful, because it sends people to you. Fonts include system fonts and open licence web fonts such as Montserrat Extra Bold, Oswald and Playfair Display, plus handwriting styles for a signature look.
Logo looks more polished and is recognized at a glance. Use a PNG or SVG with a transparent background. A white or light version of your logo usually works best over photos, with opacity around 50 percent. If you only have a logo on a white background, the white box will show; make a transparent version first, or use a text watermark instead. An SVG logo is drawn at full sharpness at any size.
For text marks, the font changes the feel more than you might expect. A clean sans serif such as Montserrat or Oswald reads as modern and stays legible at small sizes. A serif such as Playfair Display suits jewelry, weddings and fine art. A handwriting font such as Great Vibes or Allura gives a signature look for photographers and artists, but use it larger, because thin script lines fade at low opacity.
What to write in a text watermark
- Your website, such as yourshop.com, is the most useful: anyone who sees a shared photo knows where to buy.
- Your social handle, such as @yourshop, suits photos that mostly travel on Instagram, Pinterest or TikTok.
- A copyright line, such as © 2026 Your Name, states ownership clearly. Copyright exists without the notice, but the notice removes any doubt about who owns the photo.
- A status word such as PREVIEW, PROOF or SAMPLE, tiled, for files that should not be used as they are.
To type the © symbol: on Windows hold Alt and type 0169 on the number pad, on a Mac press Option+G, and on phones press and hold a letter or look in the symbols keyboard. You can also copy it from this page: ©.
Watermarks and marketplace rules
Before you watermark everything, check where the photos are going. Some platforms limit or forbid marks on product images:
- Amazon product image requirements do not allow watermarks, logos or text on the main image.
- Google Merchant Center asks for product images without watermarks, promotional text or borders; images that break this can be disapproved for Shopping ads and free listings.
- Your own store is your call, but large marks on product photos can hurt sales, because shoppers want to see the product clearly.
A practical approach many sellers use: keep clean product photos for the store and marketplace listings, and watermark the copies you post on social media, Pinterest and forums, where photos travel without context. Etsy sellers of digital products and printables often watermark preview images heavily (tiled), because the preview is close to the product itself. If you sell on Etsy, AM Jarvis's Etsy Research helps with the other half of the job: keywords and tags that get those listings found.
Examples with settings
Instagram product posts
Text "yourshop.com" in Montserrat Extra Bold, white, soft shadow on, bottom right, size 22 percent, opacity 60 percent, distance 3 percent. Subtle, readable, and it survives the 3:4 grid crop if you keep it a little inside the corner.
Photography proofs for a client
Logo in white, tiled, size 30 percent, opacity 20 percent, space 40 percent, angle minus 30. The client can judge the photos, but nobody can use them until you send the clean files.
Printable previews on a marketplace
Text "PREVIEW" in Anton, tiled, size 25 percent, opacity 25 percent. Combine with a lower resolution export so the preview cannot be printed at full quality.
Real estate listing photos
Agency logo, bottom left, size 18 percent, opacity 70 percent, distance 4 percent. Check that the mark does not cover anything buyers want to see, such as a window view.
A simple workflow for sellers
- Shoot and edit your product photos as usual, and keep the clean originals in one folder.
- Upload the clean photos to your store and marketplaces, which may forbid marks.
- Drop the same photos into the watermark maker with your website as a text mark in a bottom corner at 50 to 60 percent opacity.
- Download the ZIP and use those copies for Instagram, Facebook, Pinterest, forums, wholesale catalogs sent by email and anywhere else photos travel without you.
- For new products, repeat with the same settings so your social photos look consistent. Write the settings down: font, size, opacity and position.
Common mistakes
- Too big and too dark. A huge, solid mark hides the product and looks amateur. Start at 25 percent size and 55 percent opacity, then adjust.
- Right at the edge. A mark touching the corner is cropped off by social apps and easy to cut away. Keep 3 to 5 percent distance.
- Long text. "Copyright 2026 Your Name Photography LLC All Rights Reserved" becomes tiny at a sensible size. Keep it to a short name or address.
- One setting for very different photos. A white mark that works on dark photos vanishes on white product backgrounds. Check several thumbnails, and run light and dark photos as separate batches if needed.
Watermarking on a phone
The tool runs in mobile browsers. Tap the drop box to pick photos from your library, set up the mark while watching the preview, and tap the download button. The ZIP or single photo goes to your Files or Downloads app; on iPhone, open the ZIP in Files to unpack it, then save the photos to your library. For large batches, a computer is faster, because each photo is processed at full resolution.
How strong is a watermark?
Be realistic. A corner mark can be cropped off in seconds, and editing tools can paint over small marks. A tiled mark at decent opacity is much harder to remove cleanly. Watermarks work best as a deterrent and as attribution: casual copying drops, and photos that do get shared still carry your name. For photos that must not be used at all, share smaller, tiled, low resolution previews and keep the full files private.
Also keep your originals. The watermarked copies are new files; the tool does not change the photos on your device. If you ever need clean versions, you still have them.
Quality and formats
Each photo is opened at full resolution, marked and saved. Original keeps each photo's format (JPG stays JPG, PNG stays PNG; GIF, BMP and AVIF become PNG). Or choose JPG, PNG or WebP for the whole batch. JPG quality 85 to 90 suits most photos. WebP appears only in browsers that can create it. Camera data such as GPS location is not copied into the watermarked files, which is a privacy plus for photos taken at home.
Troubleshooting
- The logo has a white box around it: the logo file has a white background. Use a transparent PNG or an SVG.
- The mark is too small on tall photos: size follows the photo width, so portrait photos get a smaller mark relative to their height. Raise the size a little for a batch of portrait photos.
- Text disappears on some photos: keep Soft shadow on, raise opacity, or use a darker color for bright photos.
- Some photos are missing from the ZIP: files the browser cannot read, such as HEIC in Chrome, are skipped and listed in a message. Convert them first with the HEIC to JPG converter.
- The batch is slow on a phone: each photo is processed at full size. Use batches of 20 to 50 on phones, or a computer for hundreds.
Need more control over a single image, such as several text blocks and fonts? Use the add text to photo editor. To prepare a transparent logo, the SVG to PNG converter exports a logo at any size, and the image resizer shrinks a batch before or after watermarking.