Image format error kyun aata hai?
Kaafi portals sirf specific image formats accept karte hain. Aapke paas PNG hai aur portal sirf JPEG maangta hai — ya WEBP hai aur portal reject kar raha hai. Format convert karna fastest solution hai.
- Government portals: mostly JPEG/JPG accept karte hain
- WhatsApp stickers: WEBP format
- Website images: WEBP for better performance
- Printing: JPEG ya PNG preferred
Formats mein kya fark hai
| Format | Best for | Compression |
|---|---|---|
| JPEG/JPG | Photos, govt forms | Lossy — smaller size |
| PNG | Logos, transparent images | Lossless — larger size |
| WEBP | Web images | Better than JPEG at same quality |
Rule of thumb
Government portals ke liye hamesha JPEG use karein. PNG transparent background ke liye best hai (signature, logo). WEBP modern websites ke liye — lekin govt portals pe avoid karein.
JPG vs PNG vs WEBP — kaunsa kab use karein
| JPG | PNG | WEBP | |
|---|---|---|---|
| Compression | Lossy — chhota size | Lossless — bada size | Dono modes — sabse chhota |
| Transparency | Nahi | Haan | Haan |
| Best for | Photos, portal uploads | Screenshots, logos, signatures | Websites |
| Govt portals | Sab jagah accepted | Kuch portals reject karte hain | Zyada tar reject |
Rule of thumb
Government portal upload ke liye hamesha JPG/JPEG use karein — SSC, UPSC, IBPS, Railway sab isko accept karte hain. WEBP ya HEIC upload karne par "invalid file format" error aata hai.
iPhone HEIC problem
iPhone photos by default HEIC format mein save hoti hain — Indian govt portals ise accept nahi karte. Photo ko JPG mein convert karein, phir upload. Converter tool HEIC ko browser mein hi JPG bana deta hai — photo kahin upload nahi hoti.
Conversion mein quality ka kya hota hai?
- PNG → JPG: transparency white background ban jaati hai; size kaafi ghat jaata hai. Photos ke liye difference dikhta nahi.
- JPG → PNG: quality improve nahi hoti — jo detail JPG mein loss ho chuki hai woh wapas nahi aati. Size ulta badh jaata hai.
- WEBP → JPG: portal compatibility ke liye sabse common conversion. Quality 90%+ par visually same rehta hai.
Common mistakes
- File ka naam badal kar
.jpglikhna — yeh conversion nahi hai. Format andar se same rehta hai aur portal reject karta hai. Tool se convert karein. - Signature PNG mein transparent rakhna jab portal JPG maangta hai — white background wala JPG banayein.
- Baar-baar JPG re-save karna — har save par thodi quality jaati hai. Original se convert karein.
Sirf file ka extension rename karne se format badal jaata hai?
Nahi. Extension rename karne se sirf naam badalta hai, file ka internal format wahi rehta hai. Portal file ke asli format ko padhta hai aur reject kar deta hai. Hamesha converter tool se convert karein.
Conversion ke baad file size kyun badh gaya?
JPG se PNG convert karne par size badhta hai kyunki PNG lossless hai. Portal upload ke liye JPG rakhein — chhota bhi, accepted bhi.
Kya converted image ki quality kharab hoti hai?
JPG lossy hai, lekin 90%+ quality par difference aankhon se dikhta nahi. PNG/WEBP se JPG conversion ek baar karne par practically koi visible loss nahi hota.
HEIC photo ko JPG kaise banayein?
iPhone ki HEIC photo converter tool mein select karein aur JPG output choose karein. Sab kuch browser mein hota hai — photo kisi server par nahi jaati.
Format change karne par quality kharab hoti hai?
PNG se JPEG — thodi quality loss possible hai (lossy). JPEG se PNG — no quality change (PNG lossless hai). JPEG/PNG se WEBP — minimal quality loss, much smaller size.