Drop your photo, get a JPEG that passes the West Bengal Public Service Commission portal’s own upload checks — the ones its code actually runs, not the stale numbers in the guidelines PDF. Runs entirely in your browser; nothing leaves your device.
Applications to the Public Service Commission, West Bengal — WBCS, Judicial Service, Audit & Accounts, clerkship, and every other advertisement — run through a One Time Registration on the commission’s online portal (the “Apply Online” link on psc.wb.gov.in). The upload rules on this page were read from that portal’s own published validation code (July 2026), word for word as it shows them to candidates. The photograph: maximum width 300 px, maximum height 450 px, width must not be greater than height (portrait only), jpeg/jpg only, and the file-size gate is blunt — “Your Upload File is more than 50KB”. The signature mirrors it in landscape: maximum 450×200 px, height not greater than width, jpeg/jpg, 20 KB cap. This page presets the photo: 300×386 pixels — the classic 3.5 : 4.5 passport shape at the portal’s full width, safely inside both caps and safely portrait — with a 48 KB target, under 50 KB whichever way the server counts a kilobyte.
The guidelines PDF linked from the very same portal tells applicants the photo should be “within 3.5 x 4.5 cm… scanning resolution should be within 100 dpi & file size not more than 100 kb” — double what the live check accepts — and its advice for oversized files is to open them in Microsoft Office Picture Manager, software discontinued more than a decade ago. A 60–90 KB photo passes the commission’s own written guidance and is then rejected by the commission’s own JavaScript. When a PDF and the portal disagree, the portal wins: it runs the check. (The PDF’s print geometry is still useful — it’s where this page’s 3.5 : 4.5 preset shape comes from.)
Sign in ink on white paper, photograph it, and run it through this page with Exact size set to 350x150 — the standard 3.5 × 1.5 cm signature shape, inside the portal’s 450×200 box and safely wider than it is tall — and the target set to 19kb. The portal checks orientation on both images: a portrait-shaped signature (or a landscape photo) is refused with its own error message before size is even considered. If your scan has grey paper or shadows, pass it through the signature cleanup tool first — it finds the ink, whitens the background, and hands back a clean JPEG ready for the final resize.
The portal publishes no minimum size — but two popular resize tools confidently claim a 20 KB floor for the photo, and a heavily-compressed phone photo can genuinely land under it. Rather than bet either way, the preset sets a 22 KB minimum: if your fitted photo comes out smaller, PixFit pads it with spec-valid JPEG comment bytes — invisible, zero quality cost — so the file satisfies the rumoured floor and the real 50 KB cap at once. If you’d rather not pad, clear the minimum field.
Supporting-document slots in the portal accept jpg, png, bmp, jpeg and pdf, with a per-slot size cap the portal sets for each document type — the number is shown on the upload screen inside your account rather than published anywhere. If a certificate scan is refused for size, compress PDF shrinks an existing scan and image → PDF fits a photographed document into a compliant one-page PDF — set whatever cap your screen names.
The portal’s OTR warning deserves more attention than it gets: your registration details can be edited only once, the change needs a supporting document, WBPSC verifies it manually, and an accepted change reflects only in future applications. So the moment to confirm your photo is identifiable and your signature readable — at the right sizes — is before first submission. One profile then serves every WBPSC advertisement.
Search results for this exact task, read in July 2026: one popular tool compresses to the PDF’s 100 KB at 138×177 px — files from its upper range are rejected by the portal’s 50 KB check; a second sells the same 100 KB plus an invented 10–20 KB signature floor; a third offers a “20–100KB” official window — floors and cap both wrong; only one gets 50 KB right, and it pairs it with a “4 × 2 cm” signature box of its own invention. Not one mentions the portal’s pixel caps or its orientation checks — the two gates that produce error messages no amount of compression fixes.
WBCS is the flagship exam; WBPSC is the commission that runs it — same portal, same spec, both covered here. The West Bengal Police recruitment board (WBPRB) is a different recruiter with its own portal and numbers, so don’t reuse a WBPRB-sized file here or vice versa. And if some WBPSC recruitment directs you to a different application site than the OTR portal — older flows exist — believe the numbers on the screen in front of you.
Registration and applications happen only through the links on psc.wb.gov.in. A photo and signature tied to your government-job profile shouldn’t detour through a resizer’s server: PixFit runs entirely in your browser — the images never leave your device — and the re-encode strips EXIF metadata (including GPS) as a side effect. Applying to other commissions too? See BPSC Bihar, UPPSC, OPSC Odisha and the full verified table.
Spec source: the candidate-facing validation messages shipped in the WBPSC online application portal’s own page code (read July 2026) and the commission’s “Guidelines for filling up of the Online Application Form” PDF linked from that portal, whose 100 kb figure the portal’s live check contradicts as described above. These numbers can change — if the upload screen in your account disagrees, believe the portal.