Vow Image Resizer to KB icon
Vow Image Resizer to KB Windows 10 & 11 · v1.0.0 · Free to use

Image resizer to KB for Windows

"20-50 KB, 200 x 230 px." Done, exact to the byte.

Exam, visa and job portals reject a photo that is a few KB too big, or too small. Type the size the form asks for and Vow finds the best quality that fits, in KB and in pixels or cm, and shows the result before you save. Your ID photos never leave your PC.

  • No ads
  • No malware
  • No account
  • Light & dark theme
  • 3 pictures a day at any exact KB and pixel size
The Resize page with a large drop area for pictures, Add pictures and Add a folder buttons, and a row of ready-made presets, light themeThe Resize page with a large drop area for pictures, Add pictures and Add a folder buttons, and a row of ready-made presets, dark theme
Light & dark theme Zero ads, zero junk
Drop a picture and set the exact KB and pixel size
No ads. Ever.No pop-ups, no banners, no "offers".
No malware or bundlewareThe installer installs one thing: this app.
No account, no uploadIt works on your PC, and your files stay there.
Free daily limits, just $4.95 unlimitedNo subscription. No trial that runs out.

The problem

"File size must be between 20 KB and 50 KB"

The deadline is tonight, the portal keeps rejecting your photo, and every resizer you try comes back too big, too small or buried in adverts.

Your ID photo on their server

Online KB resizers take your face, signature and documents onto their servers just to make them smaller.

Missed by a few KB

"Resize to 50 KB" comes back as 52 KB and the portal says no. Web tools often miss the target.

Too small is rejected too

Portals set a minimum as well, and most resizers can't make a file bigger without wrecking the picture.

Adverts between you and the file

Resizer sites bury the download under banners and pop-ups while your application deadline ticks away.

Blocky, smeared faces

Squeezing a big photo under 20 KB by quality alone leaves a blotchy face a portal may refuse.

Grey, shadowy signatures

A phone photo of your signature comes out grey with shadows, and plain resizers do nothing about it.

Vow Image Resizer to KB fixes all of it.

How it works

Add. Type the size. Save.

Enter the numbers from the notice, watch the result land on a size meter, and save a file that passes first time.

  1. 01

    Add your picture

    Drop a photo, signature or scan on the window, paste a screenshot with Ctrl+V, or right-click it in Explorer and choose Resize with Vow.

    The Resize page with a large drop area for pictures, Add pictures and Add a folder buttons, and a row of ready-made presets, light themeThe Resize page with a large drop area for pictures, Add pictures and Add a folder buttons, and a row of ready-made presets, dark theme
    Drop a picture and set the exact KB and pixel size
  2. 02

    Type the size the form asks for

    Click a KB tile or type At least and At most, then the width and height in px, cm, mm or inches. Or pick the portal from 34 presets.

    The Presets page with a search box, category tabs and a grid of portal presets listing photo and signature sizes with Use buttons, light themeThe Presets page with a search box, category tabs and a grid of portal presets listing photo and signature sizes with Use buttons, dark theme
    Ready-made rules for exam, bank, job and visa upload portals
  3. 03

    Check it and save

    The result appears at once on a size meter with its quality and print size. Save, then copy the file or drag it straight into the upload page.

Features

Built for the rules upload portals really set

For students, job seekers, visa applicants and anyone filling in an online form with a picture box.

Exact file size

A maximum, a minimum, a range or exactly N KB, landing just under the limit with the best quality that fits.

Exact pixel size

Pixels, cm, mm or inches at any DPI, or a percentage; crop to fill, pad on a colour, stretch or fit.

34 portal presets

IBPS, SBI, SSC, UPSC, NEET, JEE, PAN, Passport Seva, US DS-160, UK, Canada, Australia and more, each with its source.

Face-centred crop

Windows' own face detector frames the photo like an ID picture, with room above the head; move the box by hand any time.

Clean signatures

Shadows and grey paper become pure white and the ink solid, in its own colour or black or blue, cut to the ink (Unlimited).

Thumbs and declarations

Thumb impressions get crisp ridges on white paper, and handwritten declarations lose their shadows (Unlimited).

Minimums met safely

Too small even at the best quality? Invisible filler brings the file up to the minimum and the picture stays unchanged.

Quality you can see

Every result gets a quality label from Excellent to Low, plus a before-and-after slider at real pixels.

Name and date on the photo

A white strip with your name and the date, as NTA exams such as NEET, JEE and CUET ask (Unlimited).

Whole application sets at once

Photo, signature and thumb in one list, each matched to the right part of a preset, then Save all (Unlimited).

Light & dark theme

Easy on the eyes, day or night.

Image Resizer to KB comes with a crisp light theme and a calm dark theme. Switch with one click, or let it follow your Windows setting by itself. It remembers your choice.

  • LightClear and bright for daytime and busy offices
  • DarkGentle on tired eyes late at night
  • Follow WindowsChanges by itself when your PC does
The Resize page with a large drop area for pictures, Add pictures and Add a folder buttons, and a row of ready-made presets, light theme
Light
The Resize page with a large drop area for pictures, Add pictures and Add a folder buttons, and a row of ready-made presets, dark theme
Dark

Screenshots

See Vow Image Resizer to KB in action

Real screenshots of the real app, in both of its themes: 7 light, 7 dark. Click any picture to see it full size.

Who it's for

Who it rescues on deadline day

Exam applicants

NEET, JEE, CUET, SSC, UPSC and GATE forms with their photo and signature rules ready to go.

Bank and government jobs

IBPS, SBI and RRB photo, signature, left thumb and declaration prepared in one go.

Visa and passport forms

US DS-160 and DV, UK, Canada, Australia, China, K-ETA and India e-Visa photo rules.

ID cards and PAN

PAN, NADRA and other ID portals that want a photo under a strict KB limit.

Job and college portals

Any form with a picture box: type its numbers and save a file that fits.

Cyber cafes and form helpers

Prepare pictures for many applicants quickly with batches and your own saved presets.

Compare

Vow Image Resizer vs online KB resizers

What typical "resize to KB" websites and desktop resizers give you, side by side.

Feature Vow Image Resizer to KB Typical online KB resizers & apps
Price Free every day, or $4.95 once Ad-funded, or a premium plan
Your photo is uploaded Never Yes, for web resizers
KB maximum and minimum together Yes, plus exactly N KB Usually a maximum only
KB and pixel size in one step Yes Often two separate tools
Lands just under the limit Best quality that fits Often misses the target
Portal presets with sources 34 built in Some sites, without sources
Signature and thumb clean-up Yes Rarely
Ads and watermarks None Common on free sites
Works without internet Yes No, for web tools

"Typical" describes what we found across the most-downloaded alternatives when we built Image Resizer to KB. Your mileage with any one of them may vary; ours won't.

Pricing

Free every day. Just $4.95 once for the lot.

That is not a typo. Software this powerful usually means a monthly subscription; Image Resizer to KB is $4.95, once, for life: it's almost a giveaway. Use it free for as long as you like, and unlock Unlimited only if you need more.

Free
$0forever

3 pictures a day at any exact KB and pixel size.

  • 3 pictures saved every day (resets at midnight)
  • Any exact KB size: range, maximum or exactly N KB
  • Any pixel size in px, cm, mm or inches
  • Face-centred crop, turn, mirror; JPG, PNG, WebP, PDF
  • Try presets and clean-ups with the result shown
  • No watermarks, no sign-up, nothing uploaded
Download free
Best valueUnlimited
$4.95USD, once. Yours for life.

Almost a giveaway. Less than a coffee for software this powerful: no subscription, no renewals, yours for life on 2 PCs.

Any number, batches, portal presets, signature clean-up.

  • Any number of pictures, every day
  • Batches and whole folders, Save all
  • 34 portal presets plus your own
  • Signature, thumb and document clean-up
  • Name and date on the photo
  • One payment, yours for life on 2 PCs
Get it, then unlock in the app

How unlocking works

  1. 1
    Use it free first Install Vow Image Resizer to KB and use it on your own files. No card, no account, no time limit.
  2. 2
    Click "Unlimited" in the app Pay $4.95 USD once by card, securely through Stripe in your browser.
  3. 3
    It unlocks itself Within seconds, for life, on up to 2 of your PCs. Your license key is emailed to you, and every future update is included.

Payments by Stripe: we never see or store your card. Questions? Ask a real person.

Clean software

Safe to install. Nothing else comes with it.

Most "free" Windows downloads pay for themselves with ads, bundled extras or your data. Vow Image Resizer to KB doesn't need to: it's paid for honestly, once, by the people who find it useful.

Download Image Resizer to KB free
  • No ads, toolbars or "offers"The installer installs one thing: Vow Image Resizer to KB. No pre-ticked boxes to watch out for.
  • No administrator rights neededIt installs just for you, in your own user folder, and leaves the rest of Windows alone.
  • Nothing running in the backgroundNo startup programs, no tray nags, no services. When you close it, it's closed.
  • Everything includedAll it needs is inside the installer, so you never have to fetch a "required component" from somewhere else.
  • Uninstalls cleanlyOne click in Windows Settings > Apps. Your own files are never touched.
  • A real company behind itMade, published and supported by XTO Pty Ltd, an Australian company, with real people answering every message.

Step-by-step guide

How to resize a photo to 50 KB on Windows

Make a photo or signature fit an exam, visa or job portal's KB and pixel rules in about a minute.

Step 1: get it free
  1. Install it free

    Download Vow Image Resizer to KB from this page and run the installer. It needs no administrator rights and no account, and adds Resize with Vow to Explorer's menu.

  2. Add the photo

    Drop it on the window or press Ctrl+O. Several pictures or a whole folder work too, and Ctrl+V pastes a screenshot or a copied picture.

  3. Enter the KB limits

    Click a tile such as 50 KB, or type At least 20 and At most 50. The default Safe mode counts KB so the file passes whichever way the portal counts.

  4. Enter the pixel size

    Type the width and height from the notice, for example 200 x 230 px or 3.5 x 4.5 cm. The face is centred in the crop for you.

  5. Save and upload

    Press Ctrl+S. The file is saved next to the original as photo-46kb.jpg; click Copy file and paste it into the portal's file box, or drag it there.

Technical details

Image Resizer to KB at a glance

Works on
Windows 10 (1809+) and Windows 11, 64-bit
File size
Maximum, minimum, range or exactly N KB or MB
Pixel size
px, cm, mm or inches at any DPI, or %
Formats
Opens JPG, PNG, WebP, GIF, BMP, TIFF and more; saves JPG, PNG, WebP, PDF
Presets
34 exam, bank, visa and ID portals, plus your own
Internet
Not needed: works fully offline
Install
Per-user, no administrator rights, no account
Languages
English
Theme
Light, dark or follow Windows: one click to switch
Version
1.0.0, released 2 November 2026
Publisher
XTO Pty Ltd (Australia)

FAQ

Questions about Image Resizer to KB

Is Vow Image Resizer to KB free?

Yes. You can save 3 pictures a day for free at any exact KB and pixel size, with crop, turn, mirror and JPG, PNG, WebP or PDF, and no watermarks. Presets and clean-ups can be tried free with the result shown. Unlimited, a one-time $4.95 USD payment, adds any number of pictures, batches, the portal presets, signature and thumb clean-up and name and date on the photo.

How exact is the file size?

It searches a continuous quality scale and lands just under your maximum, typically within 0.3%. For "exactly 40 KB" it fills the file to the byte. If even the best quality is under your minimum, invisible filler is added and the picture itself stays unchanged.

Does KB mean 1,000 or 1,024 bytes?

Portals differ, so the default Safe mode counts a maximum in 1,000s and a minimum in 1,024s, and the file passes either way. You can switch to plain 1,000 or 1,024 in Advanced.

Which exams and visas are included?

34 presets in 5 groups, including IBPS, SBI, SSC, UPSC, NEET, JEE, CUET, GATE, RRB, PAN, Passport Seva, India e-Visa, US DS-160, DV and passport, UK passport and visa, Canada, Australia, China, K-ETA and NADRA. Rules change, so each preset shows its source and every value can be edited.

Can it clean up a photo of my signature?

Yes. It turns the paper pure white, removes shadows and uneven light, makes the ink solid in its own colour or black or blue, crops to the ink and fits it into the size on white. You can try it free; saving clean-ups is part of Unlimited.

Are my photos uploaded?

No. Everything happens on your own PC. Saved files carry no location or camera details by default, so nothing personal travels with your photo.

Does it open iPhone HEIC photos?

Yes, when Windows' HEIF and HEVC extensions from the Microsoft Store are installed; the app tells you which one is missing. JPEG, PNG, WebP, GIF, BMP, ICO and TIFF always open.

Is it safe to install?

Yes. It is made and published by XTO Pty Ltd, an Australian company. The installer contains no ads, no toolbars and no bundled software, needs no administrator rights, never changes your default picture app, and uninstalls cleanly from Windows Settings.

The Vow collection

More apps you'll never have to go looking for

Same design, same promises, a tiny one-time price. Learn one and you already know them all.

Crop, brighten, blur a face, add text, and save to an exact file size

  • Free: Every basic edit, 15 saved photos a day, no watermarks
  • $9.95 once: No daily limit, one-click face blur, layers, batch edits and presets

Passport, visa and ID photos at home, sized to each country's rules

  • Free: Make and check unlimited photos, save or print 2 a day
  • $4.95 once: Save and print any number of photos, Save all for a whole family

Turn WebP, AVIF, HEIC and 40+ formats into pictures that open everywhere

  • Free: 30 pictures a day, one at a time, every format and option
  • $4.95 once: Whole folders at once, Explorer right-click, auto-convert Downloads

Done searching. Get Image Resizer to KB.

Resize photos and signatures to the exact KB and pixels a form demands. Free to use every day, $4.95 once if you ever want Unlimited.

  • No ads
  • No malware
  • No account
  • No subscription
Image Resizer to KBFree · Windows 10 & 11 Download