A hotel wants a copy of your Aadhaar at check-in. A landlord wants one for the agreement. A courier company wants one for a delivery. Each of those is a reasonable request for proof of identity and an unreasonable amount of information to hand over - because a full Aadhaar copy gives them your complete twelve-digit number, your address, your date of birth, and a QR code containing all of it that any phone can read.

What a masked Aadhaar is

A masked Aadhaar is the same document with the first eight digits of the number hidden, showing only the last four. So XXXX XXXX 1234 instead of the whole thing. Your name, photograph and the last four digits are still there, which is enough for the person to see who you are and to match the document against a record they already hold - and not enough for them to use your number.

UIDAI treats this as a legitimate form of the document, and its Sharing of Information regulations describe redacting or blacking out Aadhaar numbers as the correct way to share a document that contains one.

The best option: download one from UIDAI

If you can, get the masked version from the source. UIDAI offers masked Aadhaar as a download option on its own portal - when you download your e-Aadhaar at myaadhaar.uidai.gov.in there is a choice to download the masked version instead of the full one. You get an officially generated document, produced by UIDAI, with the masking already in it.

That is the right first stop and we would rather point you there than pretend otherwise. Like any e-Aadhaar it arrives as a password-protected PDF - see how to open a password-protected e-Aadhaar if it asks for a password you were never sent.

When you need to mask a copy yourself

The UIDAI download does not cover every situation. You may have:

• a photocopy or scan of the physical card, not an e-Aadhaar
• a photo of the card taken on your phone
• an old PDF you already have, with no easy way to re-download right now
• a document where you also want to cover your address or date of birth, which UIDAI's masking does not hide

For those, the Aadhaar Masking tool lets you mask the copy in your hand:

1. Drop in your Aadhaar PDF or photo. If the PDF asks for a password, unlock it first.
2. Drag a box across the first eight digits of the number. Draw as many boxes as you like - click a box to remove it. Multi-page PDFs have page navigation.
3. Press "Burn in the mask" and download the masked copy.

The tool deliberately does not find the number for you. Detecting it would mean reading and processing your Aadhaar number, which is exactly what this is built to avoid, and an automatic detector that missed a digit or covered the wrong ones would be worse than a box you placed yourself and can see is right.

Also cover the QR code

This is the mistake that undoes everything else. The QR code on an e-Aadhaar contains your name, address, date of birth and your full Aadhaar number, and any phone can read it in a second. Masking the printed digits and leaving the QR code intact protects almost nothing. If you are sharing a copy with someone who has no business holding your full details, put a box over the QR code too - and over your address and date of birth if they do not need those either.

Why a black rectangle in a PDF editor is not enough

This part matters and most people get it wrong. If you draw a black box over the digits in a general-purpose PDF editor, or highlight them black in Word, you have added a shape on top of still-intact text. Anyone can select the box and delete it, or select the text underneath and copy it out, and the number comes straight back. The same is true of a black rectangle in many image editors saved into a layered file. Documents have leaked this exact way, repeatedly, in far more sophisticated organisations than a landlord's office.

The masking tool re-renders the page as an image with the bar drawn into the pixels, and only then saves it. There is no separate rectangle object sitting over live text, so the covered digits are not in the output file at all. It genuinely cannot be lifted off.

Will a masked Aadhaar be accepted?

In many everyday situations, yes - it is a UIDAI-recognised form of the document, and hotels, landlords and delivery services routinely accept it. But whether a particular organisation accepts it is up to them, and some will need more: a bank doing full KYC, for instance, or a process that requires Aadhaar authentication rather than a copy. Ask before you send it rather than after, so you are not re-doing the whole thing under time pressure.

Some sensible rules for sharing Aadhaar copies

• Ask whether they need Aadhaar specifically. Often a passport, driving licence or voter ID satisfies the same requirement and carries less linked information.
• Mask before sharing, every time, unless the recipient genuinely needs the full number.
• Never post an Aadhaar number or an Aadhaar copy publicly - not in a group chat, not on social media, not as a support-ticket attachment on a public forum. This applies to masked copies too, and to your own.
• Send a file, not a photo you have also left in your phone's shared albums, and delete copies from shared drives once the purpose is served.

Privacy and the usual disclosures

The masking runs entirely inside your browser. We never receive the file, never see your Aadhaar number, and store nothing. The tool does not scan for your number, does not read the QR code, and does not verify anything against UIDAI. You decide where the box goes, which is both the private way and the honest way to build it.

LoveByPDF is an independent tool and is not affiliated with, endorsed by, or connected to UIDAI or the Government of India. For an officially generated masked Aadhaar, use UIDAI's own portal. This article is general information, not legal advice - if you have a specific question about how Aadhaar rules apply to your situation, ask someone qualified to answer it.