Watermark Images in Bulk
Overlay custom text or your logo on every image — nine positions, adjustable opacity and size.
Your images NEVER leave your device. All processing happens locally in your browser.
Drop images to watermark
Overlay your text or logo on every image — position, size & opacity
HEIC and SVG inputs are auto-converted (HEIC→JPG, SVG→PNG) when kept.
Applies to lossy formats: JPG, WebP, AVIF. Lower = smaller file.
Frequently asked questions
Are my images uploaded to a server?
No. PicShift runs 100% inside your browser using WebAssembly and Canvas. Your images never leave your device — you can even disconnect from the internet after the page loads.
How does PicShift open HEIC and TIFF files?
A full ImageMagick engine compiled to WebAssembly loads on demand (about 14 MB, once). It decodes HEIC/HEIF photos from iPhone and TIFF scans locally, then re-encodes them to the format you choose.
Is there a limit on the number of images?
No artificial limits. Drop 100+ images at once — a pool of Web Workers processes them in parallel without freezing the page, and you can grab everything as one ZIP.
Does PicShift remove EXIF metadata?
Yes. Converted images are re-encoded from raw pixels, which strips EXIF data including GPS location — an extra privacy win over many online converters.