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Everything you need to know about photo, signature, and certificate size limits for SSC, IBPS, Railway RRB, UPSC and other Indian government exam portals — and how to prepare every file without uploading a single document anywhere.
Every recruitment cycle, lakhs of candidates finish filling out an SSC, IBPS, Railway RRB, or UPSC application form only to get stuck at the very last step: the upload page. The form itself was rarely the hard part — it's the strict, portal-specific file size limits on your photograph, signature, and supporting documents that trip people up. A scanned certificate that looks perfectly fine on your phone can be 4–5 MB, while the portal wants it under 200KB. A studio photograph might be a crisp 2MB JPEG when the form caps photos at 50KB, and a single rejected upload can mean starting the whole preparation process again with the deadline clock still running.
This guide walks through what most major Indian government and banking exams expect from your documents, why applications get stuck even when every other detail is correct, and how to prepare everything — photo, signature, and certificates — using tools that never send your files to a server. Since Aadhaar cards, marksheets, and category certificates carry sensitive personal data, that last part matters as much as getting the size right.
If you just need the resizing steps without the background reading, our dedicated photo & signature resizing guide for government job applications walks through the exact pixel dimensions and file sizes for each major exam, one at a time.
Government recruitment portals are built to handle enormous concurrent traffic — sometimes crores of applicants across a single SSC or Railway cycle — on infrastructure that has to stay fast and affordable for everyone, including candidates on a slow 2G or 3G connection in a smaller town. That's the real reason behind the tight caps: a 200KB limit isn't arbitrary, it keeps upload times short and server storage manageable at that scale.
The practical result is that a large share of stuck or rejected applications aren't about eligibility at all — they're about a scanned document being too large, the wrong format (a PNG uploaded where JPEG is required), or the wrong pixel dimensions. A few patterns cause most of the failures:
None of this reflects on the application itself — it's almost always a file-preparation problem, and it's fixable in a few minutes with the right sequence of steps.
Requirements vary by exam and can change between recruitment cycles, so treat this table as a general starting point and always confirm the exact figure against your official notification before uploading.
| Exam / Portal | Photo | Signature | Certificates |
|---|---|---|---|
| SSC (CGL, CHSL, MTS) | 20–50 KB · JPEG · 3.5×4.5cm | 10–30 KB · JPEG · ~4×2cm | Typically 200–500 KB |
| IBPS / SBI (PO, Clerk) | 20–50 KB · JPEG · 200×230px | 10–20 KB · JPEG · 140×60px | Usually under 500 KB |
| Railway RRB (NTPC, Group D) | 20–50 KB · JPEG · 3.5×4.5cm | 10–20 KB · JPEG · 3.5×1.5cm | Typically 200–500 KB |
| UPSC (Civil Services) | 20–300 KB · JPEG · 200×230px | 20–300 KB · JPEG · 400×100px | Varies by form |
| State PSCs & other portals | Commonly 20–50 KB | Commonly 10–20 KB | Often 100–500 KB |
A useful shortcut: Railway RRB and SSC currently ask for nearly identical photo specifications, so a photo resized for one usually works for the other. UPSC is the outlier — it allows a noticeably larger file size, so a photo prepared for UPSC will often need to be compressed further before it fits a banking or SSC form.
This is one of the more common places candidates get stuck, because it's really two problems stacked together: combining several separate scans into a single document, and then getting that combined document back under the size limit.
The order matters here. Compress each certificate individually first, then merge — not the other way round. Merging first and compressing the combined file afterward often produces worse results, because a compressor applied across one large multi-page file tends to apply a single blanket setting to every page. That can over-compress a page that was already small, like a one-line ID card, while under-compressing a dense certificate that needed more work. Compressing each document to its best individual quality first, then merging the already-small files, gives far more control over the final size and keeps every page as legible as possible.
Once merged, check the total against the limit. Some portals size-cap "all other documents" as one combined figure, while others expect each certificate to be its own separately-limited upload — read the notification's upload instructions carefully rather than assuming, since this single detail is where a lot of otherwise well-prepared applications go wrong. If the combined file is still oversized, running Compress PDF again on the merged file usually brings it in. And if a page needs to be dropped, reordered, or ended up upside-down after scanning, Reorder Pages and Rotate PDF fix that without redoing the whole merge.
A handful of avoidable mistakes account for most of the resubmitted or rejected uploads each recruitment cycle. None of them are difficult to fix once you know to look for them:
A surprising number of failed uploads come down to one thing: not knowing the actual file size before hitting submit. Checking takes a few seconds and saves a resubmission later.
On Android: open Files by Google (or your file manager), long-press the file, and the size appears in the details panel or a small info icon. Most manufacturer file managers show it the same way under "Properties" or "Details".
On iPhone: open the Files app, tap the "i" info button on the document, or swipe down on the file with three fingers in some iOS versions to reveal size and format at once.
On a computer: right-click the file and choose Properties on Windows, or Get Info on a Mac. Both show the exact size in KB or MB near the top of the panel.
Since every tool here works fully offline once the page has loaded, you can prepare and re-check every document from a phone at home or in a cyber café, without needing a laptop, a fast connection, or a second visit just to get the size right.
Every document discussed here — Aadhaar card, category certificate, marksheet, bank passbook — carries information most people would rather not hand to an unfamiliar server, especially when a tool only needs to resize the file, not read what's inside it.
Tools that process files entirely in the browser, using WebAssembly to run the compression and conversion locally on your own device, never transmit the file anywhere. Nothing is uploaded, so there's nothing sitting on a remote server to be retained or repurposed later. It also means the tool keeps working through an unreliable connection — once the page has loaded, you can switch to airplane mode and the compression, merging, or conversion still completes, since your own device is doing the work rather than a server on the other end.
This is a genuinely different approach from most free PDF and photo tools, which upload your file to a server, process it there, and send the result back — a round trip that's often unnecessary for a task as simple as resizing or compressing. For a one-off task that doesn't involve personal data, the difference may not matter much. For a document that includes your Aadhaar number, date of birth, category, or family income details, it's worth knowing which kind of tool you're actually using before you upload anything.
File size limits feel like a small, technical hurdle next to months of exam preparation, but they're also one of the few parts of the process you have complete control over. None of it needs design software or technical skill, just the right order of steps and a few minutes per document. Every tool linked above works the same way: open it, drop in your file, and download the result, with nothing ever leaving your device in between.
Back to All ToolsFive new additions to the toolkit, all running the same way as everything else here — entirely in your browser, with nothing ever uploaded.
Runs an on-device AI translation model right in your browser — unlike almost every other PDF translator, your document is never sent to a server to be translated.
Pull every embedded photo out of a PDF at its original quality, with automatic filtering for tiny icons and repeated logos, then save individually or as one ZIP.
Turns each page into a slide, pixel-accurate to the original, ready to present or build on top of in PowerPoint or Google Slides.
Extracts a presentation's text content into a clean, searchable PDF — honestly built for reading and archiving the content, not a pixel copy of the slide design.
Drag a visual selection box to trim scanner borders or excess whitespace, applied to every page at once — handy before uploading a scanned document to a government portal with strict size limits.
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