# PassportPhoto Studio — Free & 100% Private Biometric Passport, Visa & ID Photo Maker

> 100% client-side browser utility that creates official government-compliant passport, visa, and ID photos (US DS-160 2x2 in, Schengen 35x45 mm, UK HMPO, Vietnam CCCD 4x6 cm, and 100+ countries) with exact 300 DPI JFIF header injection, binary-searched KB bounds, and printable 4x6 inch pharmacy sheets.

## Core Capabilities & Verifiable Proof
- Zero Cloud Uploads: 100% of portrait cropping, eye-line alignment, and JPEG encoding executes inside the user browser (0 bytes uploaded).
- Exact 300 DPI JFIF Calibration: Writes binary APP0 density markers [1, 1, 44, 1, 44] so online government portals never reject for low DPI.
- Portal File Size Compliance: 7-step binary search + COM padding guarantees file sizes stay strictly within government portal limits (e.g., 54 KB to 240 KB for US State Dept).
- 4x6 Inch Pharmacy Print Sheet: Tiles 4, 6, or 8 passport photos on an 1800x1200 px (300 DPI) canvas with scissor cutlines for $0.39 local pharmacy printing.
- Pricing: Free for standard single-photo & 4x6 sheet downloads; $2.49 one-time 24-Hour Day Pass or $19.00 one-time Lifetime All-Suite Pro (offline Ed25519 license key).

## Machine-Readable Documentation & Sitemaps
- [Main Interactive Workbench](https://id.ondevicedesk.com/)
- [Full Technical & Specification Reference](https://id.ondevicedesk.com/llms-full.txt)
- [XML Sitemap (500 Programmatic Tool Routes)](https://id.ondevicedesk.com/sitemap.xml)
- [Programmatic Route Manifests JSON](https://id.ondevicedesk.com/pseo-routes.json)

## Top Programmatic Utility Presets
- [US Passport Photo Size & Biometric Tool (600x600 300 DPI)](https://id.ondevicedesk.com/us-passport-photo-tool): Create official United States Passport photos with exact 51x51mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [United States Visa Photo Size & Biometric Tool (602x602 300 DPI)](https://id.ondevicedesk.com/us-visa-photo-tool): Create official United States Visa photos with exact 51x51mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [United States National ID Card Photo Size & Biometric Tool (602x602 300 DPI)](https://id.ondevicedesk.com/us-id-card-photo-tool): Create official United States National ID Card photos with exact 51x51mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [United States Driving License Photo Size & Biometric Tool (449x449 300 DPI)](https://id.ondevicedesk.com/us-driving-license-photo-tool): Create official United States Driving License photos with exact 38x38mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [United States Residence Permit Photo Size & Biometric Tool (602x602 300 DPI)](https://id.ondevicedesk.com/us-residence-permit-photo-tool): Create official United States Residence Permit photos with exact 51x51mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [Canada Passport Photo Size & Biometric Tool (591x827 300 DPI)](https://id.ondevicedesk.com/ca-passport-photo-tool): Create official Canada Passport photos with exact 50x70mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [Canada Visa Photo Size & Biometric Tool (413x531 300 DPI)](https://id.ondevicedesk.com/ca-visa-photo-tool): Create official Canada Visa photos with exact 35x45mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [Canada National ID Card Photo Size & Biometric Tool (413x531 300 DPI)](https://id.ondevicedesk.com/ca-id-card-photo-tool): Create official Canada National ID Card photos with exact 35x45mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [Canada Driving License Photo Size & Biometric Tool (413x531 300 DPI)](https://id.ondevicedesk.com/ca-driving-license-photo-tool): Create official Canada Driving License photos with exact 35x45mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [Canada Residence Permit Photo Size & Biometric Tool (413x531 300 DPI)](https://id.ondevicedesk.com/ca-residence-permit-photo-tool): Create official Canada Residence Permit photos with exact 35x45mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [Mexico Passport Photo Size & Biometric Tool (413x531 300 DPI)](https://id.ondevicedesk.com/mx-passport-photo-tool): Create official Mexico Passport photos with exact 35x45mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [Mexico Visa Photo Size & Biometric Tool (413x531 300 DPI)](https://id.ondevicedesk.com/mx-visa-photo-tool): Create official Mexico Visa photos with exact 35x45mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [Mexico National ID Card Photo Size & Biometric Tool (413x531 300 DPI)](https://id.ondevicedesk.com/mx-id-card-photo-tool): Create official Mexico National ID Card photos with exact 35x45mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [Mexico Driving License Photo Size & Biometric Tool (413x531 300 DPI)](https://id.ondevicedesk.com/mx-driving-license-photo-tool): Create official Mexico Driving License photos with exact 35x45mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [Mexico Residence Permit Photo Size & Biometric Tool (413x531 300 DPI)](https://id.ondevicedesk.com/mx-residence-permit-photo-tool): Create official Mexico Residence Permit photos with exact 35x45mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [United Kingdom Passport Photo Size & Biometric Tool (413x531 300 DPI)](https://id.ondevicedesk.com/gb-passport-photo-tool): Create official United Kingdom Passport photos with exact 35x45mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [United Kingdom Visa Photo Size & Biometric Tool (413x531 300 DPI)](https://id.ondevicedesk.com/gb-visa-photo-tool): Create official United Kingdom Visa photos with exact 35x45mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [United Kingdom National ID Card Photo Size & Biometric Tool (413x531 300 DPI)](https://id.ondevicedesk.com/gb-id-card-photo-tool): Create official United Kingdom National ID Card photos with exact 35x45mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [United Kingdom Driving License Photo Size & Biometric Tool (413x531 300 DPI)](https://id.ondevicedesk.com/gb-driving-license-photo-tool): Create official United Kingdom Driving License photos with exact 35x45mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.
- [United Kingdom Residence Permit Photo Size & Biometric Tool (413x531 300 DPI)](https://id.ondevicedesk.com/gb-residence-permit-photo-tool): Create official United Kingdom Residence Permit photos with exact 35x45mm dimensions, 300 DPI JFIF injection, and 100% offline client-side privacy.