How to Compress PDF for
Indian Government Portals
UIDAI wants 200KB. IRCTC wants under 1MB. DigiLocker, the income tax portal and Passport Seva each set their own caps. Here is exactly how big each file can be — and how to hit it every time, free and without uploading a thing.
Every Indian portal has a different limit
If you have ever tried to upload a scanned document to a government website in India, you already know the frustration. A 4MB photo of your marksheet, a bank statement export, or a passport-size photo saved as a PDF — the portal simply refuses it, often without a clear error. Each department sets its own upload cap, and they are strict. Here are the limits people run into most often in 2026:
| Portal | What you upload | Typical limit |
|---|---|---|
| UIDAI (Aadhaar update) | Proof of identity / address | 200KB – 2MB |
| IRCTC | Concession & ID documents | Under 1MB |
| DigiLocker | Self-uploaded documents | Under 1MB (10MB drive) |
| Income Tax e-Filing | Response attachments / Form 35 | Under 5MB |
| Passport Seva | Supporting documents | Under 1MB (JPEG/PDF) |
| State scholarship portals | Marksheets, certificates | 200KB – 500KB |
These numbers move around — a portal may cap one document type at 200KB and another at 2MB on the same page — so always read the note printed next to the upload button. But the table above covers what most people meet day to day.
UIDAI — the 200KB problem
The UIDAI self-service update portal is the tightest common case. When you update your address or upload a proof document, some categories demand files under 200KB. A phone photo of an electricity bill is easily 3–4MB, so it must be shrunk roughly 15–20 times over. This is where per-document compression matters, and where a 72 DPI setting earns its keep — the text stays readable but the file collapses to a fraction of its size.
IRCTC — the 1MB rule
IRCTC's concession and supporting-document uploads (senior citizen, divyangjan, and duty-pass requests) sit under 1MB per attachment. IRCTC's servers were built for low-bandwidth users across every district in the country, so the cap has stayed put even as connections improved.
DigiLocker, income tax and Passport Seva
DigiLocker gives you a 10MB drive but caps a single self-uploaded file around 1MB. The income tax e-Filing portal is more generous at roughly 5MB for response attachments and appeal forms, but multi-page scans still blow past it. Passport Seva wants supporting documents under 1MB. In every case the fix is the same: compress before you upload.
How to compress below any limit — step by step
You do not need any software or a login. LovelyPDF's Compress PDF tool runs inside your browser, so even sensitive documents like your Aadhaar or ITR never leave your phone or laptop.
- Open Compress PDF — nothing to install, no account needed
- Drag your PDF onto the drop zone, or tap to browse from your phone's Files app
- Pick a preset: Recommended (150 DPI) for most 1MB portals, Maximum (72 DPI) when you must hit 200KB
- Tap Compress PDF and wait a few seconds while pages are re-encoded on your device
- Check the final size shown in the result box, then download and upload it to the portal
If it is still too big
Sometimes one pass is not enough for the tightest 200KB caps. Two reliable tricks:
- Use Page Manager to keep only the page the portal actually needs — for a two-sided Aadhaar, the front alone often halves the size.
- Use Split PDF to break a long scan into separate documents and upload them one at a time, which most portals allow.
Why scanned documents compress so well
Almost every rejected government upload is a photo or scan — an Aadhaar card, a marksheet, a rent agreement, a bank passbook. These are stored as high-resolution images, which is why they are so large. Dropping them to 150 or 72 DPI removes pixels your eye does not need on a screen while keeping the text sharp enough to read and verify. A digital-text PDF (an e-ticket or a system-generated invoice) is already small, so if that is what you are uploading you rarely have a size problem at all.
Frequently asked questions
What is the maximum photo and PDF size on the UIDAI Aadhaar portal?
UIDAI's self-service update portal usually caps supporting documents at 2MB, but several document categories and older enrolment forms require files under 200KB. The limit is printed next to the upload field and changes by document type, so read it each time. When you need 200KB, use Maximum compression.
Why does my IRCTC or government upload fail even though it looked successful?
Many Indian portals silently drop oversized files. The submission appears to go through, but the attachment is rejected server-side and you find out only when your application is returned. Always check the file size in your file manager and compress below the stated limit before uploading.
Will compressing make my Aadhaar or marksheet unreadable?
No. The Recommended preset (150 DPI) cuts size by 50–80% while keeping scanned text clearly legible. Only drop to Maximum (72 DPI) when you must meet a very small limit like 200KB, and glance at the downloaded file to confirm the numbers and text are readable before you submit.
Is it safe to compress an Aadhaar or ITR PDF online?
With LovelyPDF, yes — nothing is uploaded. The whole process runs in your browser using JavaScript, so your Aadhaar, PAN or income tax PDF never reaches any server. If you want to hide your Aadhaar number too, run it through Redact by Pattern first.