💧 Watermark Tool

Yes — you can add watermarks to images and PDFs completely free, with no signup, no usage limits, and no watermarks added by the tool itself. All features including text, logo, signature, hidden watermark, and PDF watermarking are available at no cost.

Yes. Upload any multi-page PDF and apply text, logo, date, or border watermarks across all pages. The exported PDF preserves selectable text, clickable hyperlinks, and original page dimensions — your document content remains fully intact.

No. This is a client-side watermark tool — your images and PDFs are processed entirely in your browser. Nothing is transmitted over the internet. This makes it ideal for watermarking sensitive or confidential images before sharing them online.

You can add text watermarks (with gradient, outline, curved text, shadow, and glow effects), logo or image watermarks, hand-drawn signature watermarks, date/time stamps, decorative borders, and invisible hidden watermarks for copyright verification.

Yes. Upload any PNG, JPG, or WebP logo file as a transparent watermark overlay. Adjust its opacity, scale, and position — or enable tiling to repeat the logo across the entire image for complete copyright protection of your photos.

The hidden watermark uses steganographic encoding to embed an invisible text payload into your image pixels. The watermark is imperceptible to the human eye but can be extracted and verified using the built-in verifier. It only works with PNG exports to ensure lossless preservation of the encoded data.

Yes. The signature pad lets you draw your signature directly on screen using your mouse, stylus, or finger on touch devices. The tool supports pressure-sensitive input, stroke undo, and clear all. Your signature is then placed on the image as a watermark layer with adjustable position and opacity.

For JPG and WebP exports, you control the quality slider. At high settings (90%+), quality loss is minimal. PNG exports are lossless. The watermark is composited onto a full-resolution canvas, preserving the original image dimensions and detail.

The watermark tool supports JPG/JPEG, PNG, WebP, HEIC/HEIF (iPhone photos), TIFF, and multi-page PDF documents.

Yes. Both text and logo watermarks support a tile/repeat mode that fills the entire image with evenly spaced copies of your watermark. You can adjust the spacing, rotation angle, and opacity to create a professional pattern that deters unauthorized use while keeping the image viewable.

Photographers can use a combination of visible and hidden watermarks. Add a visible text or logo watermark with your name or brand for visual deterrence, then add a hidden steganographic watermark with your copyright information. If someone removes the visible watermark, the hidden watermark can still be extracted to prove ownership. Use the tiling mode to cover the entire image and make it harder to crop out.