US passport photo specifications
| Parameter | Requirement |
|---|---|
| Size | 2×2 inches (51×51 mm) |
| Head size | 1–1⅜ inches (25–35 mm) from chin to top |
| Background | Plain white |
| Expression | Neutral or natural smile |
| Glasses | Not allowed |
| Format (digital) | JPEG, 600×600 to 1200×1200 px |
| File size | Under 240KB |
| Recency | Within 6 months |
Key US-specific rules
- The US is one of the few countries that allows a natural smile (but no teeth-showing grins).
- Glasses are banned since November 2016.
- The background must be plain white — no off-white, cream, or grey.
- Photos must show the full head from top of hair to bottom of chin.
How to prepare for US passport
- Take a photo against a white wall with even lighting.
- Upload to PhotoResizer.in.
- Set dimensions to 600×600 px (or up to 1200×1200 px).
- Set target file size under 240KB.
- Download and upload to the State Department portal.
Technical Verification & Standards Compliance for Digital Submissions
When uploading photographs, signatures, or official records to government portals, visa processing systems, or recruitment boards, strict automated validation scripts evaluate both visual clarity and physical file parameters. Minor errors—such as non-standard aspect ratios, improper pixel dimensions, high compression artifacts, or unstripped EXIF headers—frequently trigger instant system rejections.
Image Dimension & Aspect Ratio Math
Official forms specify exact physical measurements (e.g., 3.5cm × 4.5cm) or pixel boundaries (e.g., 350×450px). Converting physical units into digital resolution requires applying exact DPI scales: Pixels = (Millimeters / 25.4) × DPI.
Local WebBrowser Compression Engine
PhotoResizer.in uses client-side HTML5 Canvas and WebAssembly algorithms to compress image streams down to specific KB limits (10KB, 20KB, 50KB, 100KB, 200KB) entirely inside your web browser. Visual data never leaves your device.