Job portals, university admissions, government forms and exam registrations often ask for a photo or signature below a strict size, such as 20 KB, 50 KB or 100 KB. A phone photo is usually several megabytes, so it is rejected. This guide explains how to shrink an image to the size you need without making it blurry.
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Compress an image now →A modern phone camera records millions of pixels and very light compression, so a single picture can be 3 to 8 MB. A web form rarely needs that much detail. A passport-style photo displayed at a small size looks the same at 50 KB as it does at 5 MB, so there is a lot of room to reduce the file safely.
The tool tries your picture at full size and high quality first. Only if the file is still too big does it lower the quality slightly, and only after that does it reduce the dimensions in small steps. This order keeps as much detail as the size limit allows, instead of squeezing quality straight away.
For limits of 20 KB or lower, start from a tightly cropped photo. A picture that already shows only the face or only the signature has fewer pixels to store, so it stays clearer. You can prepare the right size and shape first with the passport photo and signature tool, then compress it.
If the tool says it could not reach the target, the picture may be very detailed. Try a slightly larger KB value or start from a smaller original.
Always read the instructions of the website first. Some portals state both a maximum and a minimum size, and some also require specific dimensions in pixels.
Compressing keeps the same number of pixels but stores them more efficiently, usually by removing detail the eye does not notice. Resizing changes the number of pixels, for example from 4000 by 3000 to 800 by 600. Reducing the pixel count shrinks the file dramatically, but the picture will look blurry if you later enlarge it. The compressor combines both in a careful order, so you get the best quality for the size you ask for.
Every time a JPG is saved with lower quality, a little detail is lost for good. If you compress a file to 50 KB and then compress that result again to 20 KB, it looks worse than compressing the original once to 20 KB. Keep your original photo, and always start from it when you need a different size.
Compression runs in your browser. Your photos are not uploaded anywhere, and the compressed images carry no watermark.
What if the form wants exactly 50 KB?
Most forms accept anything up to the maximum. Set the target to the limit, or a little below it, for example 48 KB for a 50 KB limit.
Can I compress many photos together?
Yes. Select them all, then download everything as one ZIP file.
Will the photo lose its colours?
No. Colours stay the same. Only fine detail is reduced, and only as much as the target size requires.
Your files stay on your device. Nothing is uploaded.
Compress an image now →