Create a compact watermark stamp
Reduce a large sample or approval mark for repeated placement on photos, drafts, or document pages.
25% scale
Included with Premium access
Resize Stamp Online
Upload a stamp or seal, enter an exact width and height, keep its proportions locked or resize freely, and download a transparent PNG without leaving your browser.
- Exact pixel dimensions
- Proportions under your control
- Images stay in your browser
Online stamp resizer
Drop a stamp image here
PNG, SVG, JPG, or WebP up to 40 MB. Use a clean source when enlarging for the best edge quality.
Or paste an image Ctrl V
How it works
Match document dimensions without stretching the seal
Set an exact width or height and keep the aspect-ratio lock enabled when the stamp must retain its original proportions. Turn the lock off only when a destination requires a fixed box that intentionally changes the shape.
Smaller versions work well for watermarks, email attachments, and dense forms. Larger versions help with presentations and print preparation, but the sharpest enlargement starts from a high-resolution PNG or SVG.
- 1
Upload the stamp
Choose a PNG, SVG, JPG, or WebP containing the stamp or seal to resize.
- 2
Set width and height
Enter exact pixels, lock or unlock proportions, and compare common percentage presets.
- 3
Review and download
Check edge clarity and dimensions, then save the resized stamp as PNG.
Online stamp resizer Real result
Resize examples
Useful stamp sizes for documents and media
The right dimensions depend on the destination. These examples cover reduction, standardization, enlargement, and intentional reshaping.
Standardize a seal collection
Give multiple company, department, or historic seals a consistent outer size while preserving each proportion.
300 × 300 px
Prepare a stamp for slides or print
Enlarge a clean source for presentations, posters, demonstrations, or rubber-stamp production references.
200% scale
Fit a fixed rectangular area
Unlock the aspect ratio when a product label or layout deliberately requires a wider, compressed variation.
600 × 300 px unlocked
Check the final pixel size
Judge clarity at the actual destination size, not only in a zoomed browser preview.
Start with a clean source
SVG or high-resolution PNG artwork produces better results when the stamp must be enlarged.
Keep PNG transparency
PNG preserves transparent padding and smooth semi-transparent ink edges after scaling.
Process locally
Resizing, preview, and export run in your browser, so the source image stays on your device.
Stamp resizing questions
Answers about dimensions, aspect ratio, enlargement, transparency, limits, and privacy.
How do I resize a stamp without distortion?
Keep Lock Aspect Ratio enabled and change either width or height. The other value updates automatically from the original proportions.
Will enlarging a stamp make it sharper?
No. Enlarging adds pixels but cannot recreate missing detail. Start from SVG or the highest-resolution source available when producing a larger stamp.
Does resizing keep a transparent background?
Yes. The result is exported as PNG, preserving transparent areas and smooth semi-transparent edges.
Can I set width and height independently?
Yes. Turn off Lock Aspect Ratio, then enter both dimensions. This can stretch or compress the stamp, so use it only when the destination requires a fixed shape.
Is my stamp uploaded for resizing?
No. Decoding, resizing, previewing, and creating the PNG all happen locally in your browser.
Prepare the stamp before and after resizing
Remove extra space with crop stamp or isolate ink with extract stamp from image; after resizing, add a compatible fill with add stamp background, refine the design in the stamp maker, explore stamp generators, or convert another image with the stamp maker online free.