100% on-device • no uploads
Free • No signup • 3 taps on mobile

Signature too heavy? Get it to 10–20KB without losing the stroke.

Signatures compress badly — thin strokes blur first. This page crops to the portal's exact box and stops as soon as the file fits the band.

Step 2 — Tap to choose your photo
Gallery • Camera • Files — JPG, PNG, WebP (HEIC best on Safari/iPhone). You can also drag & drop or paste (Ctrl+V) on desktop.
Auto-starts. No account, no waiting room, no watermark.

Step 3 — Check, then download

Compressed preview
Original–
Final size–
Saved–
Dimensions–

Batch (photo + signature together)

What an accepted signature looks like

A signature upload fails for reasons that have nothing to do with KB. Portals (and the humans who review the scan) check the box, the ink, and the format at the same time.

PropertyRequirementWhy it matters
FormatJPGPNG and HEIC are rejected on most portals even at the right size
Pixels140×60 for IBPS/SBI; roughly 4×2cm for SSCCrop to the box before compressing — after compression the crop is fixed
File size10–20KBBoth ends matter: 6KB can be rejected as “too small”
InkBlack ink on unlined white paperBlue ink and notebook lines fail manual verification

Signature specs by exam

ExamSignature sizeNotes
IBPS PO / Clerk / SO, SBIJPG 10–20KB, 140×60pxOfficial IBPS guidelines
SSC CGL / CHSL / GD (2026)JPG 10–20KB, ~4×2cmPhoto is live-captured; only the signature is uploaded
RRB NTPC / Group DCommonly 10–20KB, wide aspectConfirm in your CEN notice
UPSC CSEUp to ~100KBHigher allowance than most boards

How to sign so compression doesn't ruin it

1. Black pen, white paperNo ruled paper, no coloured ink. A clean background compresses far better than a grey phone-photo of a notebook.
2. Fill the boxSign large enough that the strokes occupy most of the frame. A tiny signature in a big photo loses the most detail when scaled down.
3. Nobody's capsRunning hand, not block capitals — SSC and IBPS both reject all-caps signatures.
4. Shoot straight downFlat, even light, no shadow across the paper. Perspective correction costs you pixels.

Why signatures get rejected

RejectionCauseFix
Signature not visibleToo light, or grey paperRe-sign with black ink on white paper
File too smallUnder the 10KB minimumSet target 10 with max 20
Invalid formatPNG or HEIC outputSwitch the format selector to JPG
Blurred after uploadOver-compressed thin strokesUse the 140×60 crop and a higher quality, then re-download

FAQ

Can I sign on paper and photograph it?Yes — that is the normal workflow. Photograph flat in daylight, crop to the box, then compress here. Avoid scanning apps that add borders.
Should the signature be in running hand or capitals?Running hand. Block capitals are treated as a mismatch by SSC and IBPS verification.
What if my form asks for a signature up to 50KB?Then use the 50KB page and set the range 20–50; this page targets the tighter 10–20KB band.
Is the image uploaded to a server?No. The crop and compression happen in your browser's canvas; no image leaves the device.