Compress a photo to 50 KB — the usual limit for application photos

How to use Compress Image to 50 KB

1. Choose your photo. Phone photos, scans and screenshots all work, and you can add several.
2. Target size shows 50 KB.
3. Leave Save as on JPEG, the format application portals almost always want.
4. Leave Allow resizing if quality alone cannot reach the target ticked, so large phone photos can be scaled down if needed.
5. Click Compress to 50 KB. For each file you see the original size, the new size, the quality and the pixel size.
6. Download the copy with -50kb in its name and upload that one.

What it does and when to use it

Fifty kilobytes is a very common photo limit on application forms. It is big enough for a sharp passport-style photo and small enough for a portal to store thousands of them.

Typical situations:

• Bank recruitment. IBPS asks for a 200 × 230 px photo and a 240 × 240 px thumb impression, each between 20 and 50 KB (Annexure III of the CRP PO/MT-XVI notification, checked 2026-10-02).
• Job portals and university admissions that list “JPG, maximum 50 KB” for the photo.
• Government service forms for certificates, licences and scholarships.
• Scanned ID cards where only a small image is allowed.

When a form gives only a maximum, this page is the quickest route. When it gives a minimum as well, use a tool that controls both ends.

How it works

The tool runs a search in a background worker of your browser, using the MozJPEG encoder:

1. Encode at full size and top quality. If the result is at most 51,200 bytes (50 × 1,024), stop.
2. If not, try 30% quality. When that fits, narrow down to the highest quality that fits.
3. When even 30% is too big, and resizing is on, find the largest scale that fits, then fine-tune quality at that scale.

The aim is always the best-looking file under the limit, not the smallest possible file.

Worked examples

A 50 KB file holds 409,600 bits. Divide by the pixel count to see how much each pixel gets.

The IBPS photo, 200 × 230 px. 46,000 pixels, nearly 9 bits each. That is more than a JPEG photo this small needs, so the result may well be under 20 KB, below IBPS’s minimum. This is exactly why the exam page, which knows the minimum, is the better choice for that form.

A 35 × 45 mm photo at 300 DPI (413 × 531 px). About 219,000 pixels, close to 1.9 bits each. Comfortable; the tool should keep the size and a good quality.

A 3,000 × 4,000 px phone selfie. 12 million pixels, about 0.03 bits each. The tool will scale it down. Crop to head and shoulders first with the Image Cropper, so the shrunk photo is mostly face.

Limits and tips

• Fix the shape first. Forms that want a portrait photo will not accept a wide landscape picture. Crop before compressing.
• Light and background. Even light and a plain wall give a cleaner photo at the same size than a dim room with a busy background.
• Keep the original. The tool creates a new file; your original is not changed. Keep it in case you need another size later.
• Different limits for photo and signature? Run them separately. For signatures, a smaller page such as Compress Image to 20 KB is usually the right match.
• More room allowed? Compress Image to 100 KB keeps more detail for larger photos.