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Image Watermark

Drop your photos and pick text or a logo image to watermark them all in one go. Size is set as a share of each photo’s short edge, so mixed resolutions look alike. Location (EXIF) data is removed from the output.

On-device・No uploadMobile friendlyWorks offline

Your files and input are processed only inside your browser on this device and are never uploaded to our servers.

Drop files here (multiple allowed)

or

Photos are processed only on your device and never uploaded. EXIF data, including location, is removed from the output.Accepts: JPEG / PNG / WebP / AVIF / GIFUp to 30 MB per filePaste (Ctrl+V) also works
Watermark settings“SAMPLE” · Bottom right
Watermark type

Up to 60 characters, single line.

Font
8%

Text sets the font size; a logo sets its width, both as a share of the photo’s short edge, so mixed sizes look the same.

50%
0°
3%

JPEG has no transparency, so transparent areas become white. PNG keeps the transparency of the logo.

90

How to use

  1. photo1.jpg
    photo2.jpg

    Add several photos

  2. photo1.jpgText or logo mark
    photo2.jpgSame settings for all

    Place text or a logo over them

  3. watermarked.zipSave as a ZIP

    Save as JPEG, WebP or PNG

Add a text or logo watermark to several photos at once and save them

  1. Drop photos or click “Choose files” (several at once is fine; “Try with a sample” works too). The watermark is applied with the settings you have when files are added.

  2. Under “Watermark type”, pick text or a logo image. For text, choose the font, colour, bold and shadow. For a logo, use a PNG with transparency.

  3. Set the size, opacity and rotation. Size is a share of each photo’s short edge, so landscape and portrait shots look the same.

  4. Choose one of nine positions or “Tile across the image”. You can also adjust the margin from the edge and the gap between tiles.

  5. Pick the output format (JPEG, WebP or PNG) and quality, then press “Redo with these settings” to check. Download one file at a time or save all as a ZIP.

What it does

Text or logo

Text can use sans-serif, serif or monospace fonts, with bold, colour and shadow. A logo is drawn as a transparent PNG, so its edges and soft shadows stay intact.

Sized to each photo

Size is a share of the short edge, so one setting gives the same look across photos of different resolution.

Nine positions and tiling

Pick a corner, an edge centre or the centre. Tiling repeats rotated copies over the whole photo, so a crop rarely removes all of them.

Batch and ZIP

Process many photos with one setting, download each file or save everything as a ZIP. A before/after slider lets you check the result.

Metadata removed on export

Output is redrawn from the pixels, so EXIF (date, camera, GPS location) and ICC colour data are not carried over. Phone orientation is applied when the file is read.

Stays responsive

Work runs in a Web Worker and can be cancelled. A tiled watermark with too many copies is refused before it starts.

Use cases

  • Add a copyright line to photos before posting them on the web or social media
  • Mark proof images you send to a client with “SAMPLE” or “For review”
  • Put a shop name or logo on a batch of product photos
  • Place a logo in the bottom-right corner of every blog photo
  • Tile “Confidential” across internal images so a leaked copy is easy to trace

Supported formats

Input

JPEG (.jpg / .jpeg)PNGWebPAVIF (in browsers that support it)GIF (still)

Output

JPEG (quality 1–100)WebP (quality 1–100)PNG (lossless)

Logo

PNG (with transparency)WebPJPEG

Capability matrix

FeatureSupportNotes
Text watermark (font, bold, colour, shadow)SupportedUses fonts already on your device (sans-serif, serif or monospace families)
Logo watermark (PNG transparency)SupportedUp to 4,096 px per side
Opacity and rotation (−90 to 90 degrees)Supported—
Nine positions and tilingSupportedUp to 3,000 copies per image when tiling
Batch, per-file download and ZIPSupportedUp to 50 files per run
EXIF orientation appliedSupported—
Keeping EXIF, GPS or ICC metadataNot supportedAlways removed from the output (there is no option to keep it)
Removing or hiding an existing watermarkNot supportedThis tool cannot remove watermarks
Watermarking videoNot supportedImages only
Animated GIF, APNG or animated WebPNot supportedNot processed, to avoid losing the animation
HEIC (iPhone photos)PartialOpens in Safari and other supporting browsers; output is JPEG, WebP or PNG
Wide-gamut colour (for example Display P3)PartialConverted to sRGB on output
Watermarking PDF filesNot supportedUse the PDF watermark tool for PDF files

Limits & notes

  • Up to 50 files per run; 30 MB per file and 300 MB in total.
  • Up to 16 megapixels per photo (for example 4,000 × 4,000).
  • Logo images up to 4,096 px per side; text up to 60 characters.
  • Tiled watermarks are capped at 3,000 copies per image. Use a larger mark or a wider gap.
  • Transparent areas become white when saving as JPEG.
  • ICC colour profiles are not kept; output is sRGB.
  • Processing uses your device’s CPU and memory; older devices may be slow with many large photos. Works on smartphones, but for many large photos a PC is recommended.

Privacy & safety

Reading, drawing the watermark, encoding and zipping all happen inside your browser. Photos, logos and file names are never sent to or stored on a server.

FAQ

How do I add a text watermark to many photos at once?
Drop all the photos, choose “Text” under watermark type and type your text. Photos added after that get the current settings. After you change a setting, press “Redo with these settings” to apply it to all photos, then save the results as one ZIP.
Which format should a logo be?
Use a PNG with a transparent background. WebP and JPEG also work, but JPEG has no transparency, so the area around the logo becomes white.
Does the watermark size change between photos?
No. Size is a share of each photo’s short edge, so photos of different resolutions get the same proportions.
Can this tool remove a watermark?
No. It only adds watermarks. Removing one from an existing image usually damages the picture.
Is GPS location removed?
Yes. The output is redrawn from the pixels, so EXIF, GPS and capture-date data are not included.
Are my photos uploaded?
No. Everything runs in your browser, and photos and logos never leave your device.

Batch Image Resizer

Resizing is free: drop a batch of images and resize them by width, longest edge, box crop and more. To change pixel dimensions, type the width or long edge in px. Make several sizes (say 320, 640 and 1280) from each image in one go, then copy ready-made srcset HTML. Your images are never uploaded.

No upload

Image Editor

Annotate a screenshot or photo, reliably hide what must not be seen, tune the colours (black-and-white included) and export — on one screen. Made for how-to guides, bug reports and social posts. Your image is never uploaded and exports carry no metadata.

No upload

PDF Watermark & Page Numbers

Add watermarks (text or a logo), page numbers and Bates numbers to PDFs. Japanese watermarks work and the text in the exported PDF stays selectable. Your PDFs are processed on your device and never uploaded.

No upload

EXIF & GPS Remover

Remove the location (GPS), camera details and timestamps embedded in your photos without touching image quality. Inspect what was inside and verify the result — all in your browser.

No upload

Image Metadata Editor

Check the EXIF, IPTC and XMP in your photos and rewrite copyright, author, location and more. Image data is never touched, so quality stays the same, and everything runs in your browser.

No upload

Duplicate Similar Images

Load a photo folder and identical images and near-identical photos are grouped, with one image per group recommended to keep and the reason shown. Nothing is uploaded, and your original files are never deleted or changed.

No uploadBeta

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