Official Government Sources Directory
VisaDocAssist does not fabricate rules or rely on unverified forum posts. Every technical check, dimension, and checklist rule evaluated on our platform is cross-referenced directly with published official documentation from national immigration departments.
VisaDocAssist is an independent preparation and checking tool. It is not an official government website and has no formal connection to any of the government authorities listed below. Links are provided for verification, civic transparency, and applicant convenience.
U.S. Department of State - Bureau of Consular Affairs
Nonimmigrant, Immigrant & Diversity Visa Photos
The authoritative source for U.S. visa digital photograph composition, CEAC requirements, head measurements, and photo examples.
Consular Electronic Application Center (CEAC)
DS-160 / DS-260 Online Form Portal
Official U.S. State Department guidance on scanning civil documents and 2 MB file limits for CEAC uploads.
Immigration, Refugees and Citizenship Canada (IRCC)
Temporary Resident Visa Photograph Specifications
Official specifications for Canadian temporary resident visas, study permits, and work permits photograph submissions.
Immigration, Refugees and Citizenship Canada (IRCC)
Permanent Resident Photograph Specifications
Strict 50 mm x 70 mm photograph specifications for Canadian PR card applications.
IRCC Help Centre
Document Upload Limits
Official guidance on the 4 MB file size limit and single-file consolidation for IRCC online applications.
HM Passport Office & UK Visas and Immigration (UKVI)
Digital Photos for Passports and Visas
Published GOV.UK digital photo rules covering background tones, dimensions, sizing, and lighting requirements.
UK Visas and Immigration (UKVI)
Guide to Supporting Documents
Guidance on supporting evidence, upload limits (5 MB/10 MB), and file formats for UK visa applications.
Australian Department of Home Affairs
ImmiAccount Document Attachments Guide
Official attachment guidelines for Australian online visa applications, 5 MB file size limits, and photo attachment rules.
Immigration New Zealand (INZ)
Acceptable Photo Criteria
Official criteria for digital photographs submitted through Immigration Online including 3:4 aspect ratio, 500 KB minimum, and AI alteration prohibitions.
European Commission - Migration and Home Affairs
EU Visa Policy and ICAO Standards
Regulation (EC) No 810/2009 of the European Parliament and of the Council establishing a Community Code on Visas (Visa Code). Note: consular upload limits may vary by member state.
Want to understand our verification methodology?
Read how our editorial team extracts, mathematically encodes, and dates each consular rule.