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Private AI image workspace

Your mark. Every export.

Add a text watermark to a private PNG, place it in a corner or tile it across the whole image, preview the placement live, and download a validated private PNG.

Single or tiledLive previewCredits protected on failure

Free workspace

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One valid watermark costs 3 credits. Failed work releases its reservation.

Private source

Choose a PNG to watermark

One result · 3 credits
Watermark controls
17/128

Copyright and brand marks like © ® ™ • and accents are supported.

Text color
70%
24px
16px
Layout
Position

The live preview is an approximation. The server render is authoritative and validated before any credit settles.

How it works

One source, one private PNG.

Provider settings stay server-side. SimilarPNG owns pricing, routing, validation, retention, and credit reconciliation while you control the source, the text, and the placement.

  1. 01Choose a private PNGDrop one transparent PNG. The browser previews it before upload and never publishes it.
  2. 02Design your markType your text, pick a color and opacity, size it, and choose a single position or a tiled repeat.
  3. 03Preview, then applyCheck the live placement preview, then spend credits once for a validated private PNG.
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Frequently asked questions

Before you process

How do I add a watermark to an image online?

Upload one private PNG, type your watermark text, choose a color, opacity, font size, and padding, then pick a single position or a tiled repeat. A live preview shows the placement before you spend any credits, and SimilarPNG returns a validated private PNG.

Can I create a tiled watermark across the whole image?

Yes. Switch the layout to Tiled and your text repeats diagonally across the entire image, which makes screenshots and crops much harder to reuse. Choose Single position instead to place one mark in a corner or the center.

How do I add a copyright watermark to a PNG?

Enter a copyright line such as © 2026 SimilarPNG as the watermark text. Symbols like © ® ™ • and accented characters are supported. Pick a corner for a discreet notice or Tiled for stronger protection, then download the private PNG.

Is the watermark preview accurate?

The in-browser preview is a close approximation that helps you position the mark. The final watermark is rendered and validated server-side, and that server result is authoritative. Credits settle only for a valid delivered PNG.

Does SimilarPNG publish my watermarked image?

No. Your source and watermarked result stay private, are available only through owner-scoped preview and download routes, and expire under the retention policy shown for your account tier.