Which statement explains how PDF/X-4 differs from PDF/X-1a?

Which statement explains how PDF/X-4 differs from PDF/X-1a?

• A. PDF/X-4 requires all colors to be CMYK with no transparency.
• B. PDF/X-4 allows live transparency and RGB workflows with profiles.
• C. PDF/X-4 ignores color management entirely.
• D. PDF/X-4 disallows embedded ICC profiles.

Answer: (B)

PDF/X-4's difference from PDF/X-1a is that it preserves live transparency and supports RGB workflows with embedded ICC profiles, enabling colors to be managed and converted accurately by the output device. PDF/X-1a, meanwhile, requires transparency to be flattened and typically confines production colors to CMYK with no reliance on a color-management pipeline. This is why the statement describing live transparency and RGB workflows with profiles is the best match. The other claims don’t fit because X-4 does not force CMYK-only content, it does not ignore color management, and it does allow embedded ICC profiles.

PDF/X-4's difference from PDF/X-1a is that it preserves live transparency and supports RGB workflows with embedded ICC profiles, enabling colors to be managed and converted accurately by the output device. PDF/X-1a, meanwhile, requires transparency to be flattened and typically confines production colors to CMYK with no reliance on a color-management pipeline. This is why the statement describing live transparency and RGB workflows with profiles is the best match. The other claims don’t fit because X-4 does not force CMYK-only content, it does not ignore color management, and it does allow embedded ICC profiles.