These describe the printed rectangle. They are the useful starting point when an application specifies a physical photograph size.
Guide · Photo dimensions
Passport photo size: physical dimensions, DPI, pixels, and printing.
“Passport size” is not one universal measurement. The receiving authority determines the required physical width and height, while DPI determines how many pixels are used to represent that physical size in a digital export.
Physical size
Use the authority's dimensions, not a guessed pixel size.
If an instruction says a photo must be a particular width and height in millimetres, centimetres, or inches, those physical measurements should drive the workspace. Pixel dimensions are derived from the physical size and selected print resolution.
Pixels describe the digital image. The same physical photo can contain different numbers of pixels at different DPI settings.
DPI describes print resolution. It changes the pixel dimensions needed for a given physical size; it does not by itself change the physical dimensions when the printer prints without scaling.
Framing
Move the crop frame over the stationary source image.
FlyThe BG's photo maker separates source-photo positioning from the output frame. This makes it easier to keep the original image fixed while deciding exactly which part becomes the measured photo.
Follow the receiving authority's instructions for head size, eye line, margins and facial visibility. The tool provides framing controls but cannot determine every authority's biometric rules.
Browser zoom, monitor density and responsive layout change how large an image appears on screen. The physical output settings are what matter for printing.
Good focus, even lighting and a suitable background make framing easier. Editing cannot recover detail that is absent from the original photo.
Printing
Correct file dimensions can still print incorrectly.
Printer software often offers automatic scaling. If a measured sheet is scaled to fit the page, every photo rectangle changes size.
When your printer and paper setup permit it, disable Fit to Page and similar automatic scaling options.
Some printers cannot print to the paper edge. The sheet layout should leave enough margin for the actual printer rather than assuming edge-to-edge printing.
Before submitting important photographs, measure one printed rectangle with a ruler. This catches incorrect paper settings and driver scaling.
Size FAQ
Common passport-photo measurement questions.
Is 35×45 mm the passport size everywhere?
No. Different countries, documents and authorities can require different dimensions. Treat 35×45 mm as a specific format, not a universal passport-photo rule.
Does 300 DPI mean the photo is automatically accepted?
No. DPI is only one part of digital/print production. Acceptance can also depend on physical size, head position, lighting, background, expression, recency and the authority's file requirements.
Why does the same photo have different pixel dimensions at different DPI?
Because DPI changes the number of pixels assigned to each inch of physical output. A higher DPI therefore needs more pixels for the same physical width and height.
Make the measured file
Set the physical dimensions, frame the subject, and build the sheet.
Use the live browser photo maker after checking the current requirements for your application.