A4 vs Legal Paper Size: Key Differences & When to Use Each
A4 is the global standard: 210 mm × 297 mm. Legal paper is the North American oddball: 8.5 in × 14 in, 67 mm longer than A4.
People panic at the printer when their Word doc spills onto page 3; the culprit is often a PDF set for Legal while the tray holds A4. Travelers see U.S. contracts curl out extra-long and assume every country prints “wrong.”
Key Differences
Length is the headline. A4 tops out at 297 mm, Legal at 356 mm. A4 fits 99 % of world copiers; Legal jams European machines. Archival? Legal once stored folded deeds; A4 is optimized for ISO filing cabinets.
Which One Should You Choose?
Choose A4 for global business, academic submissions, and anything destined for email-to-print overseas. Reserve Legal for U.S. court filings, real-estate contracts, and legacy forms that explicitly demand the extra 2.75 inches.
Examples and Daily Life
A Berlin freelancer signs an NDA on A4, scans it, and emails it to a New York law firm that reprints it on Legal—same PDF, two paper sizes. Meanwhile, a Texas attorney can’t file motions on A4; the clerk rejects them instantly.
Can I trim Legal to match A4?
Yes, but you’ll lose 67 mm of content or margins and void official forms.
Is A4 the same as Letter?
No. Letter is 8.5 × 11 in; A4 is slightly taller and narrower.
Why do some printers default to Legal?
Manufacturers ship North-American models with Legal as default to match regional supply chains.