Only JPG/JPEG Allowed? Invalid Image Format Fix — Free Online (2026)
Portal message: “Invalid image format”, “Only JPG/JPEG allowed”, or “Unsupported file format”? Your photo looks fine on the phone — but the form only accepts .jpg files under a KB limit. This guide fixes format + size in the browser (free, no signup).
Why JPG-only errors happen
- PNG / WEBP from screenshots or WhatsApp — convert with Convert Image
- HEIC from iPhone — use HEIC to JPG
- Wrong extension — file named .jpg but actually PNG inside; re-export as JPG
- PDF scan — portals want photo JPG, not document PDF
Fix invalid format in 3 steps
- Open Convert Image → output JPG/JPEG.
- If form also shows KB limit (50KB, 100KB), run Compress to KB.
- Upload the new .jpg file in Chrome — avoid renaming extension only.
Common portals (JPG + KB)
SSC, UPSC, Railway, IBPS, NEET/NTA, state PSC, NSP scholarship, PAN, and university admission forms — almost all specify JPG/JPEG in the notification PDF.
Related: Photo size too large · HEIC to JPG iPhone · All upload errors
FAQ
Why only JPG or JPEG allowed?
Legacy government portals standardize on JPG for photos.
How to fix invalid image format free?
Convert to JPG, then compress to KB if needed.
iPhone invalid format?
Convert HEIC to JPG first.
PNG screenshot for form?
Convert PNG → JPG, then compress.
Still rejected after JPG?
Check pixels (200×230, 35×45 mm) — DPI converter.