KBKB Target

Exam & application forms

Photo 50 KB and Signature 20 KB Compressor

Preset and ready: drop a file and the output lands under 50 KB as JPEG — processed entirely in your browser.

Drop your image here or browse

JPEG, PNG, WebP — everything stays on your device

Signature box — under 20 KB

Drop your image here or browse

JPEG, PNG, WebP — everything stays on your device

Drop your photo in the first box and your signature scan here — each keeps its own limit.

Why this exact limit matters

Read the two numbers as a checklist, not a puzzle: photograph up to fifty kilobytes, signature up to twenty, each file validated on its own terms. Aim both at the top of their bands and the whole application stops being a compression exercise — the photo arrives sharp, the signature arrives untouched, and neither number is ever the reason a form bounces.

These portals enforce their limit at the byte level, so the only reliable approach is to work backwards from the number itself and let the encoder find the best quality that fits underneath it. 50 KB is a tight limit, typical of official upload forms, and this page is preset to exactly that ceiling.

How to compress to 50 KB

  1. Drop your image into the box above — it stays on your device.
  2. Confirm the target: under 50 KB as JPEG.
  3. The MozJPEG encoder searches its quality range so the JPEG output lands just under your limit. Dimensions are left at their original size unless the target demands otherwise.
  4. Preview the result, compare it with the original if you want, and download — the filename carries its actual size.

Tip: Before you upload, check whether your form also specifies pixel dimensions — if it does, fill in the max width and height here so both constraints are satisfied in one pass.

Measured: both slots at their ceilings

The real numbers from our test files — a 914 KB portrait against 50 KB, a 22.4 KB signature-style scan against 20 KB:

Photo slot

43.6 KB · q7

full resolution

Photo with 200×230

44.2 KB · q97

IBPS preset run

Signature slot

19.8 KB · q91

near-max quality

Both files

pass

mid-band and top-of-band

The photo pair is the story again: 43.6 KB buys quality 7 at full 1500×1800, but quality 97 inside the IBPS 200×230 box. The signature needs no help — its ceiling is generous for line art. If your form is IBPS or SSC, fill in both pixel boxes and this whole page becomes a two-click job.

The two-file checklist, exam by exam

FormPhoto size ruleDimensionsFormat
SSC CGL — photo then signaturePhoto ≤ 50 KB · Signature ≤ 20 KB275×354 px · 236×79 pxJPG both
SSC CHSL — photo then signaturePhoto ≤ 50 KB · Signature ≤ 20 KB200×240 px · 200×80 pxJPG both
IBPS — photo then signature →Photo ≤ 50 KB · Signature ≤ 20 KB200×230 px · 140×60 pxJPG both

From the 2025–26 cycles. Run down your exam’s row, produce one file per cell, and you are done — the linked presets lock both numbers of that cell in a single pass.

Frequently asked questions

Why 50 and 20 together — where does this pairing come from?

It is the top edge of the IBPS/SSC two-file rule: photo up to 50 KB, signature up to 20 KB. Using the ceilings instead of the floors leaves room for the portal’s own re-processing and still passes validation.

My photo is 48 KB but the form wants 200×230 too — does size alone pass?

Not necessarily: the dimension check runs separately. A 48 KB photo at 3000×2000 passes the KB gate and fails the pixel gate. Use the linked 200×230 preset to satisfy both at once.

Should the two files match in style — same background, same day?

The photo has content rules (recent, plain background, no glasses on US forms and similar expectations elsewhere); the signature just needs to be yours, in black ink, legible. Style consistency between the two files is never validated — correctness of each is.

My form rejected the file even though it shows the right size — what do I check?

Re-check the exact limit and the required format. Some portals quietly expect JPEG even when they say "image", and a few measure in 1,000-byte units rather than 1,024. Try the next lower round number here if the rejection persists.

Why JPEG and not another format for my upload?

JPEG is the most universally accepted image format on upload forms and gives the smallest files for photographs. If your destination accepts only "images", JPEG is the safe choice.

What happens to my image when I close the tab?

It is discarded from memory. Nothing was transmitted and nothing was stored, so there is nothing to delete.

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