Three evidence-led guides about size-route confusion, software-editing risks and Schengen visa photo verification from China.
Each guide links to the relevant authority, separates measured file facts from manual review, and states when the current browser tool cannot prepare the requested route.
Compare official paper-photo dimensions for US, UK and Canadian passports, then keep digital upload rules separate from cropping and content review.
Read guideUnderstand identity changes, background replacement artifacts and source-photo defects before using a passport or visa photo.
Read guideA practical evidence checklist for 35 × 45mm Schengen visa photos submitted from China, with examples of route-specific differences and editing risks.
Read guide