Tool 1.13

Watermark your ID or passport copy for one use

Stamp who a copy of your ID is for, and the date, across the whole photo or PDF, then download a smaller copy with no photo data. Nothing is uploaded.

Runs on your deviceRuns entirely in your browser: nothing you type or upload leaves your device.

How to use it

Drop a photo or a PDF of your ID (up to 20 pages), or click to choose it.
Write what the copy is for, like a rental application or a new job (up to 60 characters), and keep today's date on.
Check the preview, pick how strong the watermark should be (Light, Medium or Strong), and download the copy: a JPG for a photo, a PDF for a PDF.

Why a copy of your ID needs a label

Landlords, employers, lenders, phone stores and hotels ask for a photo of your ID, and that copy then sits in email inboxes, WhatsApp chats and shared folders you don't control. If it leaks, someone can use it to open an account or take out a loan in your name.

A watermark that says what the copy is for, and when you sent it, makes it much harder to reuse for anything else. A copy stamped for a rental application that shows up in a loan request is a warning sign for whoever checks it, and it tells them the copy was taken from somewhere.

What the finished copy looks like

Say you drop id-front.jpg, a 4000 × 3000 phone photo, and write Rental application, Apartment 301. The preview shows “ONLY FOR: RENTAL APPLICATION, APARTMENT 301 · SEP 25, 2026” repeated on a slant across the whole card, over the photo and the ID number too. Every other row is shifted, so no strip of the card is left clean for someone to crop out.

The download is id-front-watermarked.jpg, 1600 pixels on its long side: sharp enough to read every field, too small to pass as a high-quality scan. It carries no location, camera or date data. With a PDF, each page, up to 20, gets the watermark, and you get a PDF made of images back, so its text can no longer be selected or edited.

What a watermark can't do

It discourages reuse; it doesn't make a copy impossible to misuse. Someone with time and editing skills can cover parts of it, which is why the purpose and the date matter: they make a copy that shows up in the wrong place easy to spot.

Send only what you're asked for, and the back of the card only when it's required. Some offices, banks or government portals ask for a clean copy. Ask first, and if they need a sharper image, turn off “Make it smaller”. Finally, delete the copies you sent from your chats once the procedure is done.

FAQ

Is my ID uploaded anywhere?

No. Your browser reads the photo or PDF, draws the watermark and builds the copy on your device. Nothing is sent to us or to anyone else.

What should I write in the watermark?

What the copy is for and who gets it, for example `Rental application, Inmobiliaria Ejemplo` or `New job, Tienda Ejemplo`. Keep the date on. Avoid a generic word like “copy”, which fits any procedure.

Will an office accept a watermarked copy?

It depends on who asks. The watermark doesn't hide any of your data, so a landlord or an employer can still read everything, but some banks, notaries and government portals require a clean copy. Ask before you send it.

Can someone remove the watermark?

Not easily. It covers the whole card at an angle, and the copy is small, so there's no clean area to crop. With a lot of editing work parts can be covered, and that's why the purpose and date matter most: they show what the copy was really for.

Does it work with a PDF scan of my ID?

Yes. Each page, up to 20, is watermarked and saved as a new PDF. The pages become images, so their text can no longer be selected or copied.

Guides for this tool

G8Loans in my name? Check your credit report and phone linesCheck for free whether someone took a loan or a phone line with your ID, in Colombia, Mexico and more, and how to dispute it and prevent it next time.
G9Fake rental listings: how to spot one before you payCopied photos, an owner who is abroad, a deposit before any visit: how to check a rental listing and its booking page, and what to do if you already paid.
G22Lost or stolen cédula: what to do and how to get a duplicateWhat to do in the first hours after losing your Colombian cédula or having it stolen, how to get a duplicate, and how to keep others from using your ID.

1.1Is it a scam?Paste a message or link you received and see its warning signs: brand look-alikes, new domains, short links, scam wording.
1.2Scammed or hacked? What nowSteps for the first hours after a scam or a hack: a bad link, a shared code, a stolen WhatsApp, money sent.
1.3Is this file safe?See what a file from WhatsApp or email really is and spot attachment tricks: disguised programs, macros, PDF scripts, SMS-reading apps.
1.4Short link expanderSee where a short link (bit.ly, t.co, tinyurl…) really goes before you click it: every redirect, the final URL and warning signs.
1.5Website security scanPassive check of a website's homepage: HTTPS redirect, TLS certificate, HSTS, CSP, clickjacking, cookie flags and security.txt, with a grade and fixes.
1.6SSL certificate checkerCheck any site's SSL/TLS certificate: whether it's valid, when it expires, who issued it, which names it covers and the TLS version in use.
1.7Lookalike domain detectorCheck a link or domain for look-alike tricks: letters from other alphabets, digits for letters, a hidden real domain.
1.8Domain age checkerSee when a domain was registered, when it expires, its registrar and nameservers.
1.9Password generatorRandom passwords (8 to 128 characters) or passphrases, made in your browser with its cryptographic generator.
1.10Certificate decoderPaste a PEM certificate to read its subject, issuer, validity dates, SANs, key type and size, and its SHA-256 and SHA-1 fingerprints.
1.11Leaked password checkCheck if a password appears in known data breaches without sending it: with k-anonymity only 5 characters of its hash leave your device.
1.12Link cleanerStrip utm_, fbclid, gclid, si and other tracking parameters from links before you share them.
1.14Encrypt textEncrypt and decrypt messages or notes with a password (AES-256-GCM) in your browser.

╌╌ END ╌╌