NTA's application takes a passport-size photo between 10 and 200 KB and a signature between 4 and 30 KB, both JPG. Some cycles also ask for a postcard-size photo — add it with the kit builder if yours does.
Everything runs in your browser — your photos and documents are never uploaded to any server. Requirements change between cycles: always verify against the latest official notification. ExactKB is not affiliated with any government agency or portal.