Mask Aadhaar Numbers
Automatically find every Aadhaar number in a PDF and mask it to the last 4 digits — XXXX XXXX 1234. Everything runs on your device; nothing is uploaded.
Drop your PDF here
or click to browse — Aadhaar cards, forms, KYC PDFs, scanned copies (up to 100 MB)
Your file never leaves your device. All processing happens in your browser.
How It Works
Drop your PDF
Aadhaar card, KYC form, or any document. Scanned copies work too — OCR runs automatically.
We find every Aadhaar
Aadhaar numbers are detected and validated with the Verhoeff checksum, entirely on your device.
Download masked PDF
Each number becomes XXXX XXXX 1234. The original digits are permanently removed from the file.
Why mask instead of blacking out? UIDAI and most banks, telecoms, and government forms accept a masked Aadhaar that shows only the last 4 digits. Masking keeps the document usable for verification while removing the sensitive part — unlike a full black-box redaction.
Frequently Asked Questions
How do I mask an Aadhaar number in a PDF?▾
Drop your PDF into EverydayPDF's Aadhaar masking tool. It detects every Aadhaar number in your browser, validates each with the Verhoeff checksum, and masks it to the last 4 digits (XXXX XXXX 1234). Download the masked PDF — the document is never uploaded to any server.
Is a masked Aadhaar (last 4 digits) valid for banks and government forms?▾
Yes. UIDAI itself recommends sharing a masked Aadhaar that reveals only the last 4 digits, and most banks, telecom operators, and KYC/government forms accept it. Masking keeps the document usable for verification while protecting the full number.
Can the original Aadhaar number be recovered after masking?▾
No. EverydayPDF permanently removes the masked digits: the affected pages are rebuilt so the original number is gone from the PDF content — it cannot be copied, searched, or recovered, unlike a black box drawn on top of live text.
Does it work on a scanned or photographed Aadhaar card?▾
Yes. If the PDF is a scan or photo with no text layer, EverydayPDF runs OCR on your device to read the number first, then masks it. Clearer scans give more reliable detection.
Is the Aadhaar masking tool free?▾
You can mask 3 documents per day for free. For unlimited masking, EverydayPDF Pro is a one-time ₹1,999 payment — no subscription. All processing stays on your device on every plan.