Runs on your device · Your file never leaves your device.
Brazilian identity documents and enrolments — RG, CNH, school and university records, job applications and concurso registrations — which all ask for the classic «foto 3x4» asks for a photo of 354 × 472 pixels, 30 × 40 mm at 300 DPI, under 500 KB, plain white background. Photo studios charge to hit numbers that are published for free; this page starts with those numbers already set. Take a selfie or pick a photo from your gallery, drag until your head fills the guide, and download the finished JPEG.
These are the numbers the issuing office or portal (each Detran, school or concurso publishes its own upload limit) commonly ask for; the exact figures could not be confirmed on an official page, so check the portal before you submit. The head should fill about 60–72% of the photo’s height, with a neutral expression, eyes open and nothing covering the face. The background cleaner turns any wall into the plain white background the rules ask for.
Everything runs inside your browser. The photo of your face never touches a server, and the page keeps working with the internet switched off.
How to Brazil 3×4 ID photo from your phone
Open this page — the brazil 3×4 id settings are already selected.
Take a selfie or pick a photo from your gallery.
Drag and zoom until your head fills the guide oval; clean the background if the wall is not plain.
Press create. The photo is cropped to 354 × 472 pixels and kept under 500 KB on your device, then download it.
Supported formats and limits
Output
JPEG, 354 × 472 pixels
Print size
30 × 40 mm at 300 DPI
File size
under 500 KB
Background
Plain white
Head height
about 60–72% of the frame
Source
Commonly required — verify on the issuing office or portal (each Detran, school or concurso publishes its own upload limit)
Where it runs
In your browser; the photo is never uploaded
Not for: Judging the face itself — expression, glasses and lighting rules are checked by the authority, not by software.
Frequently asked questions
Is my photo uploaded anywhere?
No. Cropping, background cleaning and compression all run inside your browser on your own device. Your face never reaches a server, which is why the tool also works with the internet switched off.
Is this the same as the Brazilian passport or e-visa photo?
No. The passport and the e-visa use the 35 × 45 mm ICAO photo (see the Brazil e-Visa page). The 3 × 4 cm photo is the everyday format for RG, CNH, school records and concursos.
What file size do Brazilian portals accept?
It varies: gov.br services and many concursos cap the upload at 70 KB, others allow 500 KB or more. Type the limit your form shows into the tool; the compressor keeps the photo under it without visible loss.
What size does the brazil 3×4 id photo have to be?
354 × 472 pixels, 30 × 40 mm at 300 DPI, under 500 KB, plain white background. These are the numbers the issuing office or portal (each Detran, school or concurso publishes its own upload limit) commonly ask for; the exact figures could not be confirmed on an official page, so check the portal before you submit.
Why do photos get rejected?
Most rejections are technical, not about the face: wrong proportions — the print must be 3 × 4 cm; background not plain white; face too small or turned; the head should fill about two thirds of the height. This page fixes the technical ones automatically.
Can I use a photo taken by a friend?
Yes. A phone photo taken from about a metre away, in daylight, against any plain wall, is the best starting point. Avoid a selfie held too close, which distorts the face.
Can I print it as well as upload it?
Yes. The JPEG carries a 300 DPI stamp so it prints at 30 × 40 mm; choose a print format in the tool to get a sheet ready for the photo shop.
What if my form asks for a different number?
Pick Custom size in the tool and type the pixels and the kilobyte limit the form shows. The same cropping guide and compressor apply.