US Passport Photo Requirements, Explained
Briefly

When you get a new passport, the finished product is largely unchangeable, but you can leave your mark on the one component you control—the photo.
The image must be 330 PPI or higher, and it’s important that the photograph is captured by someone else—not taken as a selfie.
When it comes to passport photos, the requirements from the US Department of State are strict, so knowing them is essential to avoid rejection.
Looking good in a passport photo may seem impossible, but conforming to the guidelines can at least ensure your picture is acceptable.
Read at Conde Nast Traveler
[
|
]