Kya DPI change karne se image quality badalti hai?

Nahin. DPI metadata mein stored ek print-density instruction hai; yahan pixels ko touch tak nahin kiya jaata — recompress bhi nahin hota. Quality sirf pixels resample karne par badalti hai, jo ye tool kabhi nahin karta.

Printing ke liye kitna DPI chahiye?

Close-up dekhi jaane wali photo prints aur publications ke liye standard 300 DPI hai. Doori se dekhe jaane wale large posters 150 par chalte hain, screen-only kaam 72 ya 96 par rehta hai — jahan number waise bhi ignore hota hai.

300 DPI par meri image kitni badi print hogi?

Pixels ko 300 se divide karein: 3000×2000 ki photo 25×17 cm print hoti hai. Tool current aur proposed dono DPI ke liye ye dikhata hai.

DPI file ke andar exactly kahan store hota hai?

PNG physical density file ke shuru ke ek chote chunk mein rakhta hai; JPEG density aur units apne JFIF header mein rakhta hai. Rewrite exactly wahi bytes hote hain — PNG mein correct checksum ke saath.

Image DPI Changer

Printing ke liye PNG ya JPEG ka DPI set karein — metadata file mein hi edit hoti hai, ek bhi pixel dubara compress nahin hota.

Image DPI Changer poori tarah aapke browser mein chalta hai, bytes device par edit hote hain. Aapki images kabhi upload nahin hotin.

Image Converter kholein

Image DPI Changer ke baare mein

Image DPI Changer "images 300 DPI mein bhejein" wali request solve karta hai bina aapke pixels ko chhue. DPI image quality nahin hai — ye ek metadata note hai jo printer ko batata hai ki existing pixels paper par kitni densely bichhaayein. 3000×2000 ki photo 72 ya 300 DPI par wahi photo hai; sirf intended print size badalta hai (105 cm wide vs 25). Ye tool file ke andar ka resolution field padhta hai — PNG ka pHYs chunk, JPEG ki JFIF density — aur sirf wahi chand bytes rewrite karta hai. Koi decoding, recompression ya quality loss nahin, isliye chahe file kitni bhi badi ho, kaam turant hota hai.

Features

PNG aur JPEG ke metadata bytes edit karke DPI set karta hai
Zero recompression: pixels byte-identical rehte hain
Current stored DPI dikhata hai, "none set" bhi
Inches aur centimeters mein print size preview
72, 96, 150, 300 aur 600 DPI ke presets
File size ke bina instant processing

Image DPI Changer kaise use karein

PNG ya JPEG drop karein
Stored DPI aur current print size check karein
300 (ya kisi bhi value) chunein aur naya print size dekhein
Download karein — pixels untouched rahenge

Example

Input

3000×2000 photo at 72 dpi

Output

Same file at 300 dpi — prints 10×6.7 in instead of 41.7×27.8 in

Pixels identical hain; sirf print instruction badla hai.

Common errors aur troubleshooting

Change ke baad bhi screen par image same lagti hai. — Yahi hona chahiye — screens DPI ko poori tarah ignore karti hain aur pixels dikhati hain. Change sirf printers aur metadata check karne wale submission systems ke liye matter karta hai.
Print shop abhi bhi low resolution kehti hai. — DPI metadata pixels create nahin kar sakta. Agar 300 DPI par print size chahiye se chota ho, toh us size ke liye image mein resolution kam hai — zyada pixels chahiye, alag number nahin.
Tool ek screenshot ke liye "none set" batata hai. — Kaafi screenshots aur web images density field simply skip kar dete hain, aur software 72 ya 96 assume kar leta hai. Explicit value set karna hi wo cheez hai jo 300 DPI check karne wale systems chahte hain.

Aksar pooche jaane wale sawaal

Kya DPI change karne se image quality badalti hai?: Nahin. DPI metadata mein stored ek print-density instruction hai; yahan pixels ko touch tak nahin kiya jaata — recompress bhi nahin hota. Quality sirf pixels resample karne par badalti hai, jo ye tool kabhi nahin karta.
Printing ke liye kitna DPI chahiye?: Close-up dekhi jaane wali photo prints aur publications ke liye standard 300 DPI hai. Doori se dekhe jaane wale large posters 150 par chalte hain, screen-only kaam 72 ya 96 par rehta hai — jahan number waise bhi ignore hota hai.
300 DPI par meri image kitni badi print hogi?: Pixels ko 300 se divide karein: 3000×2000 ki photo 25×17 cm print hoti hai. Tool current aur proposed dono DPI ke liye ye dikhata hai.
DPI file ke andar exactly kahan store hota hai?: PNG physical density file ke shuru ke ek chote chunk mein rakhta hai; JPEG density aur units apne JFIF header mein rakhta hai. Rewrite exactly wahi bytes hote hain — PNG mein correct checksum ke saath.

Related tools

Image Format Converter — Images ko PNG, JPEG aur WebP ke beech poori tarah aapke browser mein convert karein.
Image Optimizer — Images ko re-encode aur chhota karein (JPEG/WebP/PNG), optional resize ke saath.
Image Cropper — Koi bhi hissa ya fixed ratio crop karke poori resolution mein download.
EXIF Viewer aur Remover — Photos se EXIF metadata (GPS samet) dekhein aur hatayein; kuch bhi upload nahi hota.
SVG to PNG Converter — SVG ko kisi bhi scale par ek crisp PNG ya JPG mein rasterize karein
Image se PDF — Images ko ek single PDF mein combine karein (auto / portrait / landscape).