Choosing the Right DPI

DPI myths bahut hain. Reality simple hai: web ke liye pixels matter karte hain; print ke liye physical size × DPI. Yeh guide decisive rules ke saath confusion khatam karta hai.

Rules

• Web: specify pixel width/height
• Print: physical size × DPI (usually 300)
• Large format: 150–200 DPI often enough

Math without the pain

Print width (inches) × DPI = required pixels. Example: A4 width ≈ 8.27" at 300 DPI → ~2481 px. Height 11.69" × 300 → ~3507 px.

When 300 DPI is overkill

Billboards/posters ko door se dekhte hain; 150–200 DPI usually enough. Magazine/close‑view prints ke liye 300 DPI keep karein.

Web delivery reality

Web me DPI metadata ka koi effect nahi hota — pixels decide clarity. Resize Images me exact pixel dimensions set karein, aur width/height attributes page pe zaroor de.

Color and profiles

Print ke liye CMYK workflows familiar hote hain, but browser me sRGB standard hai. Web me CMYK images dull lag sakti hain — convert to sRGB before export.

Common pitfalls

• CMYK images on web → muted colors
• Insufficient pixels for print → soft output
• No dimensions on web → CLS issues

FAQs

Q: Kya DPI change karne se web pe sharpness badh jaati hai?
A: Nahi. Web me sirf pixels matter karte hain.

Q: Print ke liye JPEG chalega?
A: High‑quality JPEG chalega, but text/line‑art ke liye vector/PDF better.

Wrap‑up

Right DPI = right expectations. Web me pixels, print me inches × DPI. Bas.