SafeMark | Watermarking Tool

Prepare files safely before you share them.

1Choose file → 2Edit watermark → 3Download

SafeMark adds visible watermarks to images and PDFs directly in your browser. Nothing leaves your device.

Sensitive areas can also be blacked out before sharing.

Image or PDF. Processed entirely in your browser.

Text, opacity, color, size, position. Live preview as you go.

Export instantly. Your original file is never modified.

Supports JPG, PNG, WEBP, GIF, BMP and PDF.

PDFs and images can have sensitive areas blacked out.

Images can also be cropped before export.

Choose one file to start the local preview.

Tap to choose your document

JPG PNG WEBP GIF BMP SVG PDF

Clear live preview before export.

Original file stays unchanged in your browser session.

1

Drop your file

Image or PDF. Processed entirely in your browser.
2

Set the watermark

Text, opacity, color, size, position. Live preview as you go.
3

Download

Export instantly. Your original file is never modified.

No file selected

Ready for upload

Images only

Text

Opacity 50%

Size 50px

Angle -45°

Color

Coverage

Left - Right 50%

Top - Bottom 50%

Prefer full cover - it is generally safer and harder to remove than a single watermark.
Apply a diagonal, tiled watermark across the document.
Choose a medium to large text size - avoid tiny text.
Use medium to high opacity so it stays clearly visible.
Pick a color with strong contrast to the background.
If using single placement, put it over the most sensitive content while keeping everything readable.
Include recipient, purpose, and date in the watermark text.
Share only the minimum required information.

Live result

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Output format: - File never leaves your device