Convert a Photo to JPG at an Exact KB Size
Turn a PNG, WebP or iPhone HEIC into a JPG and hit the file size your form demands — in one step, free, and without your photo leaving your device.
Online forms usually want two things at once: the file must be a JPG, and it must be under a stated size such as 60KB or 70KB. Doing that as two separate jobs — convert somewhere, then compress somewhere else — wastes quality, because the second tool re-encodes what the first one already degraded. Set the format to JPEG and the size target above and both happen in a single pass.
Why forms insist on JPG
Two reasons, and neither is arbitrary. PNG is lossless, so a photograph saved as PNG is several times larger than the same picture as JPG and will not fit a KB limit at all. And portals process millions of uploads, so they standardise on one format their systems can be certain of. That format is almost always JPG.
What happens to a PNG’s transparency
JPG cannot store transparency. Any see-through area has to be filled with a solid colour when you convert, and this tool fills it with white, which is what forms expect for a photograph or a signature. That matters most for a signature cut out on a transparent background: converted here it lands on white, exactly as a scanned signature would.
iPhone photos and HEIC
An iPhone saves photos as HEIC by default, and most Indian and Pakistani exam portals reject it outright. Converting to JPG solves the rejection and the size limit together. If your browser cannot open a HEIC file directly, open the photo in the iOS Photos app and share it to Files, which writes a JPG copy you can drop in here.
Frequently asked questions
How do I convert a photo to JPG under 70KB?
Drop the file above, choose JPEG as the output format, set the target to 70 KB and compress. Conversion and compression happen together, so you never re-encode twice.
Does converting PNG to JPG lose quality?
A little, because JPG is lossy — but for a photograph the loss is invisible at the size a form displays it, and the file becomes small enough to actually upload. For a signature, keep it above roughly 10 KB and the strokes stay clean.
Will my transparent background turn black?
No. Transparency is filled with white here, which is what forms expect. Some other converters default to black, which is why a signature sometimes arrives as a dark rectangle.
Can I convert HEIC from my iPhone?
Yes, where your browser can read HEIC. If it cannot, share the photo from the iOS Photos app to Files first — that saves a JPG copy — then drop that in and set your size.