Image Tutorial
4 min read
•Updated August 2026How to Compress Photos to an Exact File Size (20KB, 50KB, 100KB)
Online passport applications, visa registration portals, and university exam forms often demand images under a rigid size cap, such as "less than 50 KB". Here is how to hit that exact target without trial and error.
Compress to exact size now
Type any target size (KB/MB) and download instantly.
Common Government & Visa Photo Requirements
| Portal / Use Case | Required Size Limit | Recommended Format |
|---|---|---|
| Passport & Visa Application Portals | Under 50 KB / 100 KB | JPG / JPEG |
| Government Exam & Job Portals | Under 20 KB (Signature / Photo) | JPG |
| University Admissions Forms | Under 200 KB | JPG / PNG |
| Web & E-commerce Product Images | Under 100 KB / WebP | WebP |
How Binary Search Target Compression Works
Manually adjusting JPEG quality sliders in photo editors usually requires 5–10 export attempts to get close to 50KB without going over.
Qeviro Compress Image runs a 6-pass binary search algorithm. When you type "50 KB", the engine calculates the exact mathematical balance between compression quality and canvas resolution downscaling, guaranteeing the resulting file fits under 50KB while retaining maximum visual sharpness.
3 Simple Steps to Compress to Exact Size
- Open the Compress Image Tool.
- Ensure "Compress to Exact Size" mode is active and enter your size (e.g. 50 KB or 20 KB).
- Click Compress Images and download your file ready for upload.
Related Conversion & Document Tools
- JPG to PDF Converter — Compile compressed photos into an official PDF document.
- PDF to JPG Converter — Extract picture files from PDF certificates.