Free · made for Indian online forms

Compress an image to 20 KB, 50 KB or 100 KB — and the exact pixels the form wants

Pick what the form asks for, drop the file in, crop it or darken a faint signature if you need to, then download. Photos are compressed by your own browser and are never uploaded.

Works for SSC, UPSC, NEET, IBPS, AFCAT, JEE, GATE, Railway RRB, BPSC and any other Indian form with its own KB and pixel size.

Open the tool See all Easy Tools

The sizes forms ask for

What to use for a photo, a signature or a thumb impression

Most Indian application portals — SSC, railway, police, university and state recruitment sites among them — ask for these. The exact numbers are printed on the form itself, so check there first; these are the ones that come up at a counter most often.

What it is forUsual pixel sizeUsual file sizeFormat
Photo on an online form200 × 23020 – 50 KBJPG
Signature140 × 6010 – 20 KBJPG
Thumb impression240 × 24020 KBJPG
Passport photo to print (35 × 45 mm)413 × 531up to 100 KBJPG
Scanned certificate or marksheetas scanned100 – 200 KBPDF

In the tool these are buttons — Form photo, Signature, Passport photo, Thumb impression — so nobody has to remember them.

How it works

Four steps, about ten seconds

  1. 01

    Pick what the form asks for

    Tap Form photo, Signature or whichever matches. The size and the pixels fill themselves in. Or type your own numbers.

  2. 02

    Add the file

    Choose it, drag it in, or paste a screenshot with Ctrl+V. JPG, PNG, WebP and PDF all go in, and you can add several at once.

  3. 03

    It starts by itself

    No button to find. It tries a quality, measures the real bytes that came out, and narrows until it has the best picture that still fits under the limit. Only a PDF waits to be asked, because a PDF is the one thing here that leaves your computer.

  4. 04

    Look at it, then download

    The list shows the finished file, not the one you put in. Tap it to choose a different part of the picture. Then take one file, all of them, or all of them in one ZIP — whichever the portal at the other end will take.

Why this one

Three things most online compressors do not do

It hits the number, and proves it

The size shown is the real byte length of the file you are about to download, measured after encoding — not an estimate. If it cannot reach the target it says so and says why, instead of handing over something too big.

Exact pixels, without a squashed face

Ask for 200 × 230 and you get 200 × 230 — taken from the middle of the picture, the way a passport photo is cropped, rather than stretched out of shape or quietly returned at the wrong size. A signature is the opposite: there the whole thing is fitted in, because the end of a pen stroke is not spare picture.

Your photos stay on your computer

A picture is compressed by your own browser and never uploaded to us or anybody else. A PDF is the one exception — it comes to our server for a moment, is squeezed, and goes straight back. It is never saved.

PDFs too

Compress a PDF to 100 KB or 200 KB

Upload portals often cap a scanned certificate at 100 KB or 200 KB. Drop the PDF in with the size you need and it comes back a PDF. First it is simply tidied, which keeps the text selectable; only if that is not small enough do the pages become pictures. The tool tells you which of the two happened, so you are never left wondering why the text stopped being text.

Try it — it is free

Questions

Common questions

How do I compress an image to 20 KB?

Open the Image and Signature Resizer, set the size to 20 and add your photo — it starts on its own. It searches the quality settings for the largest, clearest version that still comes in under 20 KB, and shows you the real size of the result. If the picture cannot reach 20 KB at its current pixel size, it makes the pixels smaller — or tells you plainly that it could not.

How do I resize a photo to 200 × 230 pixels for a form?

Tap the Form photo button, which sets 200 × 230 pixels and a 50 KB target together. The result is exactly 200 × 230, taken from the middle of your picture so faces are not stretched. You can also type any width and height yourself.

What size should a signature be for an online application?

Most Indian portals ask for roughly 140 × 60 pixels and under 20 KB, in JPG. The Signature button sets both at once. Always check the form itself, because a few portals ask for something different. There is a whole page about resizing a signature, including what to do with a phone photo of a signed sheet of paper.

Can I compress a PDF to 100 KB?

Yes. Add the PDF, set the target to 100 KB and press the button that offers to send it. A PDF is the one thing here that waits to be asked, because it is the one thing that leaves your computer. The PDF comes back as a PDF. Where possible the text is left selectable; where the file has to get much smaller, the pages are turned into pictures, and the tool says which happened.

Is this resizer free, and do I need to install anything?

It is free and there is nothing to install — it runs in your browser. You sign in once with a free Your Astha account, which also unlocks the other Easy Tools.

Are my photos uploaded anywhere?

Photos are not. The compression happens inside your own browser, so the picture never leaves your computer. PDFs are the exception: a PDF cannot be resized in a browser without downloading a very large library first, so it goes to our server, is squeezed, and comes straight back. It is not stored and it is not logged.

Will compressing make the photo blurry?

Only as much as it has to. The tool keeps the highest quality that still fits under your target, rather than dropping straight to a low setting. A 2 MB phone photo usually reaches 50 KB while still looking fine on a form. Asking for 20 KB at full pixel size is where blurring starts to show.

Can I compress several photos at once?

Yes. Add as many as you like — they all start together, and the button counts them off as they finish. Take them away individually or as a single ZIP. Each one is checked against the target on its own.

Why was my photo rejected for being too small?

Many forms set a range, such as 20 to 50 KB, and turn a file away at either end. A plain photo at the right pixel size can easily come out at 6 KB, which is under the minimum. The resizer takes both limits: if the result falls below the minimum it adds invisible padding to the file, without changing one pixel of the picture, and tells you it did.

How do I combine photos into one PDF under 200 KB?

Open PDF Tools, add the pictures — a marksheet, a certificate, an ID — and put them in order. Tick Squeeze it to a size, type 200, and press Make the PDF. Each picture becomes a page, and the PDF comes back under your limit at the best picture quality that fits.