Photo Resizer – Resize Image in KB or Pixels

How to Resize a Photo to a Specific KB Size

Government portals and exam forms rarely reject a photo because it looks wrong — they reject it because the file is a few kilobytes over the limit or the dimensions are off. This photo resizer solves both at once. Pick a target (say resize photo to 20kb or 50kb), upload your image, crop to the locked aspect ratio, and the tool binary-searches JPEG quality until the file lands inside your KB range. No guesswork, no repeated re-saving.

Resize by KB vs. Resize by Dimensions

Two different requirements are easy to confuse. Resizing by dimensions changes how many pixels wide and tall the image is — for example an exact 200×240 px SSC photo or a 1080×1080 social post. Resizing by KB changes the file weight by adjusting compression, so a photo fits a 20 KB or 100 KB ceiling. Exam portals usually demand both: correct pixels and a capped file size. This tool handles the pixel dimensions during cropping and the KB target during export, then lets you fine-tune quality manually if you want to nudge the size up or down.

Government Exam Photo & Signature Sizes (UPSC, SSC, PAN, NEET)

Reference specifications for common Indian exam and ID forms in 2026. Requirements can change between notifications, so always confirm against the official portal — but these presets get you compliant in one click.

Exam / Form	Photo Size	Photo Dimensions	Signature Size	Sig. Dimensions
SSC CGL / CHSL	20 – 50 KB	200 × 240 px	10 – 20 KB	140 × 60 px
UPSC CSE / IAS	Max 300 KB	300 × 400 px	Max 300 KB	400 × 100 px
IBPS PO / Clerk	20 – 50 KB	200 × 230 px	10 – 20 KB	140 × 60 px
SBI PO / Clerk	20 – 50 KB	200 × 230 px	10 – 20 KB	140 × 60 px
RRB NTPC / Group D	20 – 50 KB	200 × 230 px	10 – 20 KB	140 × 60 px
NEET UG / JEE	10 – 200 KB	200 × 266 px	3 – 30 KB	280 × 120 px
GATE	5 – 500 KB	480 × 640 px	5 – 200 KB	480 × 160 px
PAN Card / Aadhaar	5 – 50 KB	213 × 213 px	10 – 20 KB	140 × 60 px

Why Portals Reject Your Photo

File size over the limit

A phone JPEG can be 3–5 MB — 100× over SSC's 50 KB cap. The binary-search engine finds the exact JPEG quality to land inside your target range without visibly degrading the photo.

Wrong pixel dimensions

Many tools only compress, they never resize. SSC needs exactly 200×240 px. This tool resizes the canvas to the precise pixel dimensions after you crop.

Incorrect aspect ratio

Free-hand cropping distorts proportions. The interactive cropper locks the aspect ratio to your chosen exam or size specification automatically.

Wrong format (not JPEG)

Modern phones save HEIC, but portals only accept JPEG. This tool always outputs a clean JPEG regardless of the input format.

Your Photos Never Leave Your Device

Privacy is not an afterthought here. Your photo and signature are read, cropped and compressed entirely inside your browser using the HTML canvas API. Nothing is ever uploaded to DominateTools or any third-party server, which also means the tool keeps working even on a slow or intermittent connection.

Frequently Asked Questions

How do I resize a photo to a specific KB size?

Upload your image, choose a preset or set a custom min/max KB target, then crop. The tool runs a binary search on JPEG quality to land inside your KB range — for example 20 KB or 50 KB — without over-compressing. You can also drag the quality slider to fine-tune the exact size.

Are my photos uploaded to a server?

No. Every photo and signature is processed entirely in your browser using canvas. Nothing is uploaded to DominateTools or any server, so your images stay private on your own device.

What size photo does UPSC or SSC require?

SSC typically needs a photo of 20–50 KB at roughly 200×240 px and a signature of 10–20 KB. UPSC accepts a photo up to about 300 KB at 300×400 px. Select the matching exam preset and the tool applies the correct dimensions and KB range for you.

How do I resize a signature for an exam form?

Choose a signature preset such as SSC or IBPS Signature, upload your scanned sign, crop it to the locked aspect ratio, then download a JPEG that fits the required KB and pixel limits.

How do I resize a photo to 20 KB without losing quality?

Set a 20 KB target, crop your image, and the tool binary-searches JPEG quality to find the highest quality that still fits under 20 KB. Because it stops at the first quality level that meets the limit, the photo stays as sharp as the size cap allows — far better than manually re-saving until the file is small enough.

Can I resize an image to exact pixel dimensions like 200×230 px?

Yes. Pick a preset with the pixel size you need, or choose Custom Size and type an exact width and height in pixels, centimetres or millimetres. After you crop, the canvas is scaled to those precise dimensions, so the output matches specs like 200×230 px or 300×400 px exactly.

Can I resize a photo on my phone?

Yes. The resizer is mobile friendly and works in any modern mobile browser. You can upload a photo straight from your camera roll, pinch to zoom while cropping, and download the resized JPEG — all without installing an app or creating an account.

Which image formats can I upload — HEIC, PNG or JPEG?

You can upload PNG, JPEG or HEIC images. Whatever you start with, the tool always exports a clean JPEG, which is the format exam portals and government forms require, so an iPhone HEIC photo becomes an upload-ready JPEG automatically.

Photo Resizer — Resize an Image in KB & Pixels