Tutorial

1. Click the upload button on the canvas toolbar, or drop a file onto the canvas — JPG / PNG / WebP / GIF / BMP images and PDF, Word (DOCX) documents are supported.
2. Pick a watermark type in the left panel — "Text" or "Image" — and adjust its settings.
3. Preview live on the canvas: scroll or pinch to zoom, drag to pan.
4. Click "Export" in the top-right and choose PNG, JPG or PDF.

Everything runs locally in your browser — your files are never uploaded, and loaded files keep working offline.

In the "Text" settings panel you can adjust:

• Content — defaults to CONFIDENTIAL; use your name, company or any text;
• Font & size — 6 fonts, size 12–200px;
• Color & opacity — opacity 5%–100%;
• Rotation — -90° to 90°;
• Spacing X / Y — 0–400;
• Shadow & stroke — toggle them under "Advanced" for extra contrast.

The classic diagonal look: rotation -30°, opacity 0.2–0.4 and larger spacing — visible without hiding the content.

• Click "Upload Image" and pick your logo or stamp — up to 250KB;
• Opacity and scale range from 5%–100%, rotation from -90° to 90°;
• Layout offers 6 options: tile, center, and four corner positions (top-left / top-right / bottom-left / bottom-right).

Use a transparent-background PNG as your watermark image for the cleanest result.

Stack up to 10 layers, mixing text and image watermarks freely:

• Use the "Text / Image" buttons above the layer list to add layers — new layers appear at the top;
• The first row in the list is the topmost layer on the canvas; reorder with "Move up / Move down";
• Each layer can be independently toggled, duplicated, deleted or renamed (pencil icon);
• Click a layer row to select it, then edit its settings. At least one layer must remain.

Combine a logo stamp layer with a text layer on top — the text will sit above the logo.

• Once your settings look right, hit "Save param template" in the Templates panel — up to 20 presets;
• Image watermarks are saved together with the template (images over 250KB store parameters only);
• Templates live only in your browser's local storage — nothing is uploaded;
• Click a template to apply it, use the pencil icon to rename, × to delete.

Keep a template per use case (e.g. "contract stamp", "blog header") and apply it with one click.

• Uploading a PDF loads every page — use the paging buttons on the toolbar to preview each page;
• When exporting to PDF, every page gets the watermark rendered — no manual work;
• Word (DOCX) documents are converted to page layout first, then watermarked and exported as PNG / JPG / PDF.

Exporting large multi-page PDFs takes a moment — the progress indicator shows the current page.

• Drop several images at once (up to 50) to enter batch mode automatically;
• Use the toolbar to preview each file, and the pencil icon in the file list to set a custom export name per file;
• On export, every image gets the same watermark settings and the results are packaged into one ZIP download.

Batch mode supports images only; a single-image export downloads directly without a ZIP.

• PNG — keeps transparent backgrounds, lossless quality;
• JPG — white background, smaller files, great for sharing;
• PDF — images or documents as PDF; multi-page PDFs get every page watermarked.

Files export under their original names by default; use the pencil icon in the file list to customize, and a ✓ marks a completed export.