इमेज 10 KB में
Compress an image to under 10 KB
For signatures, thumb impressions and tiny scans, where every kilobyte counts.
Runs in your browser · nothing uploaded
How to use it
- 01Crop your signature or stamp tightly in your phone gallery first.
- 02Add it here; the 10 KB limit is already chosen.
- 03Check that the ink is still dark and clear in the preview, then download.
1.9 MB phone photo of a signed page
9.2 KB JPG, about 440 × 150 px
About this tool
Ten kilobytes is a very small budget: a phone camera produces files a few hundred times bigger. A JPEG of that size can describe only around 40,000 to 60,000 pixels of ordinary photo detail, which is a face picture roughly 200 by 250 pixels. That is why 10 KB limits are almost always meant for things that compress well, not for portraits.
A signature is the ideal case. Dark ink on white paper is mostly flat white, which JPEG stores almost for free, so a clean signature several hundred pixels wide often lands near 5 to 9 KB. A thumb impression behaves the same way if the paper is clean and the print is dark. One caution: some forms set a minimum as well as a maximum, and a 10 to 20 KB window is common for signatures, so a very small file can be refused for being too small. The exam photo resizer and the increase-size tool cover that case.
The tool begins from a copy no larger than 900 pixels on the long side, then looks for the highest JPEG quality that keeps the file under the limit. When that quality would look rough it shrinks the picture a step at a time, so the lines stay sharp instead of turning into blocks.
Get a clean signature under 10 KB
Sign with a dark pen, preferably blue or black, on plain white paper with no lines or watermark. Photograph it in daylight near a window so there are no shadows across the page, then crop so the ink fills the frame with a thin margin. Every pixel of empty paper you remove is a pixel the encoder no longer has to carry.
If a shadow or a coloured background is unavoidable, increase contrast in your gallery editor before you add the image. Faint grey scribble and paper grain are the things that push a signature from 8 KB to 20 KB, because noise is expensive to encode.
When a photo will not fit in 10 KB
A portrait that must stay recognisable generally needs more than 10 KB. If the result looks smeared even at the highest quality that fits, the forms you are filling probably expect the size you chose to apply to a different file, such as a signature, not the photo. Check the notice again, because a photo and a signature often have different limits.
If the form really wants a face photo under 10 KB, expect a small picture. Crop tightly around the head and shoulders, use plain light-coloured background, and accept a final size in the low hundreds of pixels. The summary under the preview tells you the exact width, height and quality used.
Common uses
- Handwritten signature uploads on application and scholarship forms
- Left-thumb impression or fingerprint scans on a white background
- Small stamp, seal or initials images
- Tiny profile icons for old portals with strict limits
हिंदी में मदद
10 KB बहुत छोटी सीमा है, इसलिए यह सिग्नेचर और अंगूठे के निशान जैसी साफ़-सुथरी, सफ़ेद पृष्ठभूमि वाली इमेज के लिए सबसे ठीक रहती है। पहले इमेज को स्याही के पास तक क्रॉप करें, फिर यहाँ डालें। चेहरे की फ़ोटो 10 KB में छोटी और कम साफ़ ही बनेगी।
Questions
Why does my signature photo stay above 10 KB?
Usually the picture still contains a lot of paper, shadow or grain. Crop to the ink only, photograph in even daylight and try again; noise is what costs the bytes.
How wide can a 10 KB signature be?
Several hundred pixels is normal for a clean signature, for example 400 to 500 px wide. A busy photo with the same limit would have to be far smaller.
Will the thumb impression still be readable?
Yes if the print is dark and the background is white. Smudged or pale prints lose detail first, so press firmly and scan in good light.
Can I use a colour signature?
You can, but a plain dark signature on white compresses best. Colour backgrounds and gradients cost extra bytes without adding clarity.