How to Bulk Watermark Images Online (ZIP Download)
Apply the same text or logo watermark to many photos in your browser—shared opacity, placement, and tiling—then download one ZIP. No account or server upload.
In short
Use Multiple images in Watermark Image: add files, set text or logo once, pick Repeat or Diagonal for proofs, download watermarked-images.zip when the queue finishes.
To bulk watermark images privately, open Watermark Image, switch to Multiple images, upload your logo or enter text once, set opacity and placement (Repeat or Diagonal tiles the mark across every file), add all photos, wait for per-card processing, then download watermarked-images.zip—everything stays local in the browser.
When bulk beats one-by-one
Bulk watermarking pays off when every file in the folder needs the same rule: same logo, same opacity band, same Repeat or Diagonal pattern. Client proof galleries, ecommerce drops, and campaign asset batches are the classic cases.
Tune one representative image in One image mode first—drag placement, check readability—then switch to Multiple images and mirror the preset pills or tiling mode for the rest.
Shared settings, shared limits
Multiple images mode applies one position pill to every file; it does not support per-image drag. Portrait and landscape mixes still share the same corner label, so spot-check both orientations on the preview cards before downloading the ZIP.
Changing any control re-queues the batch. That is useful when you fix opacity mid-run, but costly on huge folders—validate settings on a small subset before adding hundreds of files.
ZIP handoff checklist
Open two or three random outputs from watermarked-images.zip before sending to a client. Confirm native resolution, export format, and that Diagonal coverage reads on both light and dark images.
If a few outliers need custom placement, re-run those files in One image mode; bulk is for consistency, not surgical framing on every shot.
Real-world examples
Worked example: 40 photographer proofs
Input: 40 edited JPGs (~3000px) for client selection before paid delivery.
Workflow: Multiple images mode, text watermark with studio name in white at 45% opacity, Placement Diagonal so every frame is covered. Position pills set to center anchor for consistency across mixed orientations.
Export: JPG at native resolution via watermarked-images.zip (~250–400 KB per file). Clients can review freely; proofs are poor candidates for repost until finals ship without the mark.
Why this works
- One settings block stamps dozens of proofs or catalog shots without reopening desktop apps.
- Repeat and Diagonal placement apply the same deterrence pattern to every image in the batch.
- Local processing fits client folders and unreleased assets that cannot be uploaded elsewhere.
When to use this workflow
- You send a gallery of client proofs that need the same studio mark on every file.
- You publish product or campaign photos and want one logo treatment across the set.
- Desktop batch tools are unavailable and you need a quick browser workflow.
- You already tuned placement on one photo in One image mode and want the same rule on the rest.
Step-by-step guide
- Open Watermark Image and switch to Multiple images.
- Drag in many files or use Add more images after the first batch (JPG, PNG, WebP, HEIC, AVIF, SVG, and other browser-decodable formats).
- Choose Text or Logo, enter your caption or upload the mark once for the whole queue.
- Set opacity and rotation; under Placement pick Single with corner pills, Repeat for edge-to-edge tiling, or Diagonal for a −45° proof preset.
- Pick PNG, JPG, or WebP export format—shared by every file in the batch.
- Review per-card previews and summary totals, then download the ZIP when processing completes.
Common mistakes to avoid
- Expecting per-image drag placement in bulk—use One image mode to fine-tune one photo, then mirror presets in Multiple images.
- Using Single placement with a tiny corner mark on proofs that clients can crop out instantly.
- Skipping a spot-check on one card before watermarking hundreds of files with the wrong opacity or logo size.
- Assuming a visible watermark is copy protection—it deters casual reuse, not determined editing.
Frequently asked questions
Do all bulk files use the same watermark settings?
Yes. Changing text, logo, opacity, rotation, placement, spacing, position pills, or export format reprocesses every item in the queue with the new parameters.
Can I add files after the queue started?
Yes. Use Add more images from the summary bar; new files join the queue and pick up the current settings automatically.
Repeat or Diagonal for a proof gallery?
Diagonal is the fast preset for edge-to-edge coverage at −45°. Repeat gives the same tiling with custom rotation and spacing if you need a different angle.
Can I paste one image in Multiple images mode?
Paste (⌘V / Ctrl+V) works in One image mode only. For many files, use drag and drop or multi-select in Multiple images.