Free tool · exam & government forms

Resize a photo or signature to the exact KB, pixel size and DPI your form asks for

Online forms reject photos that are a few KB too big, the wrong pixel size, or missing the DPI. Set all three here — with a crop frame so faces are never stretched, sizes in pixels or centimetres, and a file that lands exactly where the form wants it. Everything happens on your own phone or computer.

100% free
No upload
Exact KB, to the byte
Real DPI in the file
Crop, no stretching
cm, mm, inch or px

Exact KB, pixel and DPI image resizer

Private: your photo never leaves this device Works offline once loaded

Quick presets — always check the exact size in your form’s instructions

Choose a photo or signature JPG, PNG or WebP — or drop / paste it here Choose image

Size on the form

Width Height Unit

DPI Fit

Leave one side empty to keep the proportions.

File size – exact

File size in KB

The file will be exactly this size — not a byte more, not a byte less. 1 KB = 1,024 bytes, as Windows shows it, so 25 KB = 25,600 bytes. If your form gives a range such as 20–50 KB, enter a value inside it, for example 40.

Extras Black & white Clean signature background (pure white paper)

Your image is ready

Save image

Filling in an application? We print forms, admit cards and supporting documents — send them on WhatsApp.

In short: To resize a photo to an exact KB size for an online form, open the tool above, choose the image, enter the width and height (for example 200 × 230 pixels), the DPI and the KB limit (for example 20–50 KB), and press Create image. The photo is cropped without stretching, compressed to the right size, tagged with the DPI, and saved as a JPG — without being uploaded.

How the tool gets your photo accepted

Choose the image
A phone photo, a scan or a signature. Tap a preset or type the size your form asks for.
Frame it
Drag the frame and zoom so the face or signature sits right. Nothing is stretched.
Set KB and DPI
Enter the exact KB and the DPI. Sizes in cm or inches are converted for you.
Create and check
The result shows its real pixels, KB and DPI next to what you asked for, then save it.

KB, pixels and DPI – what forms actually check

Pixels (width × height)

The number of dots in the image, such as 200 × 230. Portals check this exactly, so the photo must be cropped to that shape rather than squashed.

File size (KB)

How much space the file takes. Forms usually give a limit or a range like 20–50 KB. The tool makes the file exactly the KB you enter, so it lands precisely inside that range. It adjusts JPEG quality to the best that fits, then adds harmless padding to reach the size to the byte.

DPI

A label inside the file saying how many dots make one inch when printed. It does not change the pixels or the KB, but some portals and printers read it.

Centimetres and inches

If a form gives a size like 3.5 × 4.5 cm, pixels = centimetres ÷ 2.54 × DPI. Choose cm and the tool does the maths.

Common print sizes in pixels at 300 DPI
Size	Pixels at 300 DPI	Often used for
3.5 × 4.5 cm (35 × 45 mm)	413 × 531	Passport-size photos
2 × 2 inch (51 × 51 mm)	600 × 600	Square photos for some visa forms
2.5 × 3.5 cm	295 × 413	Stamp-size photos
6 × 2 cm	709 × 236	Signature boxes

Requirements differ between exams, departments and countries and change over time. Always follow the size given in your form’s official instructions.

Why this resizer gets it right when others don’t

Most image compressors give you a quality slider and leave you guessing. This tool is built around the way form portals check files.

Exact KB, to the byte

Ask for 25 KB and you get 25,600 bytes — not one more, not one less — at the best quality that fits.

Writes a real DPI

The DPI is stored in the JPG header where Windows, Photoshop and portals read it, and the result table reads it back to prove it.

Never stretches a face

A crop frame with zoom keeps the photo’s proportions, while cm, mm and inch sizes are converted to exact pixels.

Who uses it

Exam applicantsPhoto and signature uploads for recruitment, entrance and board exam forms.
Government servicesApplications for IDs, certificates, scholarships and schemes that set strict KB limits.
Job seekersPhotos for online job portals and company application forms.
Cyber cafés and CSC operatorsResizing customers’ photos quickly, on any computer, without installing software.
StudentsAdmission forms, hostel forms and ID cards.
Anyone printing photosSetting 300 DPI and the right centimetre size before printing.

Printing documents for your application? Get the cheapest – best quality printouts in India

Forms, admit cards, study material and document sets printed on Laser Book Printing machines — 600 DPI, powder toner, never inkjet — and couriered anywhere in India.

Starting rates, A4
Service	From	Condition
Black & white, 70 GSM	₹0.50 / side	Front-back, 1000+ pages, text files
Colour, 80 GSM	₹1.50 / side	Front-back, text only, 500+ colour pages (₹2.00 for 200–499)
Colour, below 200 pages	₹4.50 – ₹8.00	100 GSM Premium: ₹8.00 (1–10), ₹6.00 (11–50), ₹4.50 (51–199)
Spiral binding	₹30 – ₹50	By thickness, up to 275 sheets
Courier	₹50 / kg	Mumbai & Thane; rest of India ₹120 first kg

B&W printouts Colour printouts Document scanning Book printing WhatsApp us

Quick answers

How do I compress a photo to 20 KB or 50 KB?

Choose the photo above, enter 20 or 50 in the KB box, set the pixels, and press Create image. The file comes out at exactly that size.

How do I resize a photo to 200 × 230 pixels without stretching it?

Enter 200 and 230 with the unit set to pixels and Fit set to Crop. Drag the frame over the face and create the image.

How do I resize a signature to 10–20 KB?

Tap the Signature preset (exactly 15 KB, inside the 10–20 KB range), check the frame and create the image.

How do I change a JPG to 300 DPI?

Enter 300 in the DPI box and create the image. The DPI is written into the file without changing its pixels.

How do I make a 3.5 × 4.5 cm passport-size photo?

Set the unit to cm, enter 3.5 and 4.5 with 300 DPI. The tool makes it 413 × 531 pixels.

How do I increase a photo’s size to a minimum KB?

Enter the size you need in the KB box. If the photo is naturally smaller, the tool adds harmless padding so it is exactly that size.

Terms used on this page

KB (kilobyte): A unit of file size: 1,024 bytes as Windows counts it, or 1,000 bytes on some websites.
Pixel dimensions: The width and height of an image in dots, for example 200 × 230 px.
DPI: Dots per inch: the print resolution stored in the file, which sets how large the image prints.
JPEG quality: How strongly a JPG is compressed. Lower quality gives a smaller file with less detail.

Other names people use for JPG to Exact KB

Whatever you search for, it is this same free tool on BulkPrintouts.com:

resize image to 20 KB
compress JPG to 50 KB
photo resizer in KB
image size reducer
reduce photo size in KB
resize signature to 10 KB
signature resizer
passport size photo resize
photo for government exam
SSC photo resizer
UPSC photo size
NEET photo resize
JEE photo size
bank exam photo and signature
image to 100 KB
resize image to pixels
change DPI of image
compress image for online form
200 x 230 photo
photo and signature resizer

What makes this photo resizer different

Six promises, in words anyone can follow. All 20 free tools keep the same promises.

Use it again and againNo daily limit. Use it 1 time or 1,000 times.
No size limit from usOnly your device’s memory decides how big a job can be. A computer handles more than a phone.
Your file stays with youNothing is uploaded. The work happens on your phone or computer.
Free, alwaysNo trial, no premium plan, no hidden charge.
No signupNo email, no password, no OTP.
No watermarkYour finished file is clean, with no logo on it.

Frequently asked questions

Is this photo resizer free?

Yes. It is free, with no signup, no watermark and no limit.

Is my photo uploaded?

No. The photo is processed by your own browser and never sent to any server. Once the page has loaded, it even works offline.

Why does the portal still reject my photo?

Check the result table: pixels, KB and DPI should all match the instructions. Some portals also require a JPG extension, a plain background or a face that fills most of the frame — use the zoom to adjust.

What if the photo cannot get small enough?

Very detailed photos may not fit a tiny KB limit at a large pixel size. The tool tells you the smallest size it managed; try a plain background, Black & white, or a slightly higher KB limit if the form allows.

How does the tool reach the exact KB?

It first finds the highest JPEG quality that fits under the limit, then adds a comment block of empty bytes to the file to reach the size. The picture is unchanged and the JPG stays valid.

Does DPI change the quality?

No. DPI is only a label for printing. The pixels and the KB decide how the photo looks on screen and on the portal.

Should I crop, fit or stretch?

Crop for photos, so faces keep their shape. Fit with a white border for signatures and documents, so nothing is cut. Stretch only when the image is already the right shape.

Does it work on a phone?

Yes. It works in Chrome, Safari and Samsung Internet. Drag the frame with your finger and use the zoom slider.

Which formats can I use?

JPG, PNG and WebP go in; the result is always a JPG, which is what nearly every form asks for. Transparent areas become white.

Can you print my documents?

Yes. Send them on WhatsApp to +91 98201 69619. Black & white starts at ₹0.50 per side and we courier across India.

Is there a limit on how many times I can use the photo resizer?

No. Use the photo resizer as many times as you like, every day, with as many photos as you need. There is no daily limit, no file-count limit, no account and no paid plan.

What decides the biggest job the photo resizer can handle?

Only your own device's memory (RAM). We set no size limit, because the work is done on your phone or computer and nothing is uploaded to us. A laptop or desktop can handle far bigger files than a phone. If a very large job slows down, close other tabs and apps, or use a computer.

How is the photo resizer different from other online photo websites?

Many online photo websites upload your file to their server and limit free use by file size or number of tasks. The photo resizer works inside your own browser instead: no upload, no size cap set by us, no daily limit, no signup and no watermark, free for personal, school and business use.

Last reviewed: 07/10/2026 · Published by BulkPrintouts.com, Borivali West, Mumbai · Questions? Call or WhatsApp +91 98201 69619 (Mon–Sat, 3 PM–10 PM IST).