Free · No signup · On your device

Watermark images

Add your own text to a batch of JPG or PNG images. Check every preview, keep the original dimensions and download a ZIP.

Local only. No file upload, signup, ads or saved file history. Clear or leave this page to discard the workspace; your originals stay unchanged.

Choose JPG or PNG images

Up to 20 images, 20 MiB input, 24 megapixels each and 60 megapixels total. PNG outputs up to 60 MiB. A new selection replaces this batch.

Your watermark text

Position

Text color

Text size (% of the shorter edge)Opacity (%)

Long text is reduced to fit. Repeated marks fit inside each tile. Choose a contrasting color and check the actual PNG previews before downloading.

Enable JavaScript to process files locally.

Before you start

Static JPG and PNG only. Choose the text, position, size, color and opacity; output is PNG with transparency retained. EXIF orientation is applied. Animated images are rejected. Browser rendering may change color and remove metadata; keep your originals. A visible watermark is not encryption or guaranteed copy protection.

Processing stays in this browser, with no server fallback. We do not store documents in a database, browser history, IndexedDB or local storage. Clearing files releases this workspace's references; leaving the page ends local processing. Downloads you save remain on your device.