An official photo sized 10x15 cm is a standard paper photo format, commonly used for portraits, applications, archives, or certain government procedures. The 10x15 cm size equals 4x6 inches.

 Main requirements:

• Photo size: 10 × 15 cm (100 × 150 mm)
• Background: light, neutral (white or light gray)
• Focus: face must be clearly visible, no blur
• Lighting: even, without shadows on the face or background
• Head and shoulders: occupy most of the photo, face centered

Additionally:

• No dark glasses or headwear (unless for religious reasons)
• Photo must be recent, taken within the last 6 months
• No retouching, filters or decorative effects

 Suitable for:

• Printing on standard photo paper
• Visual archives
• Documents requiring large-format printed photos