Resize Image to 30KB Online
Upload a photo or signature, keep 30KB selected, and download a JPG that fits your form’s limit. Everything runs on your device.
Where the 30KB limit is used
Some state recruitment boards, police recruitment portals, and university forms cap photos or signatures at 30KB. It sits between the strict 20KB signature limit and the common 50KB photo limit.
At 30KB a passport-style photo around 200×230 to 300×400 px stays sharp, and signatures look very clean. Large phone photos should be reduced in pixels first.
What fits well in 30KB
| Image type | Suggested size | Expected quality |
|---|---|---|
| Passport-style photo | 200×230 to 300×400 px | Clear face and natural colours |
| Signature | Up to 350×150 px | Very clean |
| Small ID or document crop | Up to 600 px wide | Readable large text |
Always match the pixel size in your notification.
How to use it
- Upload a JPG, PNG, WebP, or HEIC image.
- Keep 30KB selected, or type your form’s maximum.
- Enter the required width and height and position the crop.
- Process, confirm the size, and download the JPG.
Tips for photos under 30KB
- Use a plain light background — busy backgrounds use more bytes.
- Face the camera in even daylight to avoid grainy shadows.
- Crop so your face fills most of the frame.
- If the form lists a minimum size, stay a little above it.
Frequently asked questions
How do I make my photo less than 30KB?
Upload it, keep 30KB, set the pixel size your form needs, and process. KbSnap compresses to the best quality that fits under 30KB.
What size should a 30KB photo be in pixels?
Common sizes are 200×230 px and 300×400 px, but use the exact size from your notification.
Can I resize a signature to 30KB?
Yes. Signatures fit easily; you can also use the signature tools for paper cleanup.
Does it work with iPhone photos?
Yes. HEIC photos are converted to JPG and orientation is corrected.
Is it free?
Yes — no signup, no watermark, no daily limit.
Is my photo uploaded?
No. It is processed in your browser.
Related tools
Tiny signature and thumb slots.
Resize image to 20KB →For signatures and small photo slots.
Resize image to 50KB →The most common exam photo limit.
Resize image to 100KB →For certificates and larger photos.
Resize image to 200KB →Scans and high-quality photos.
Signature resize 10KB–20KB →Hit both the minimum and maximum.
Resize image in KB (any size) →Any KB limit and pixel size.
Image compressor (bulk) →Compress up to 20 images at once, download as ZIP.
Helpful guides
- Reduce Photo Size in KB on Your Phone (Android & iPhone) — A step-by-step way to shrink a phone photo to 20KB, 50KB or 100KB for an online form without making it blurry — and why the obvious shortcuts fail.
- KB vs Pixels vs DPI: What Photo Upload Forms Check — Does 200 DPI change the KB? How many pixels is 3.5×4.5 cm? Which number does the portal check? KB, pixels and DPI explained with worked examples.
- Exam Photo Rejected? 10 Common Reasons and How to Fix Each — Wrong pixel size, a file outside the KB range, HEIC instead of JPG, a sideways photo: 10 reasons portals reject photos and signatures, with a fix for each.