How to Create a Transparent PNG Seal
A seal is only useful if it sits on top of your document without a white box around it. That means exporting it with a transparent background. Here's how to do it and how to use the result.
Why transparency matters
A seal with a solid white background covers whatever is underneath it — text, table cells, other signatures. A transparent PNG keeps only the inked shape, so the ring, text, and center element float directly over your content the way a real stamp would. This is essential when you overlap a seal with a signature line, a date field, or existing text.
Exporting a transparent PNG
In the seal generator, once your design looks right:
- Open the export options.
- Choose PNG — the export is transparent by default.
- For sharper results, pick a higher resolution (2×–4×). This is worth it whenever the seal will be printed, zoomed, or placed on a high-DPI screen.
- Save the file. All rendering happens locally in your browser; nothing is uploaded.
The resulting file has no background — only the seal itself, with everything around it fully transparent.
When to use high resolution
A standard-resolution PNG is fine for on-screen use at its display size. Choose 2×–4× when:
- the seal will be printed,
- it needs to be enlarged without looking jagged, or
- it will appear on a retina / high-DPI display.
Higher resolution means a larger file, so don't reach for 4× by default — match it to where the image will actually be used.
PNG or SVG?
PNG is a fixed-resolution image: perfect for dropping straight into a document. SVG is a vector: it scales to any size with zero quality loss and can be re-edited later. If you need a print-ready or infinitely scalable asset, export SVG instead. We compare them in detail in SVG vs PNG for seals.
Placing the seal into a document
Once you have the transparent PNG, dropping it into Word, PDF, or an image editor takes a couple of steps — mainly making sure it floats over the text rather than pushing it around. We walk through each app in how to add a seal to a PDF or Word document.
A reminder: a seal image makes a document look stamped but does not give it legal effect. For anything binding, use a compliant signing system — see electronic seal vs. electronic signature.