Shrink photos and signatures to under 20KB for civil service exams, university portals, and government application forms. 100% in your browser.
Drag & drop or click to upload
JPG, PNG, WebP up to 50MB
Geek check: open DevTools → Network tab — 0 bytes of your data uploaded.
Target size: 20 KB per image — quality adjusts automatically.
Processed 100% locally in your browser — files never leave your device.
Drop your application portrait or scanned signature into the compression box above.
The encoder automatically sets the target ceiling to 20KB (0.02MB) and optimizes JPEG quality.
Check the live preview to verify that dimensions match your portal specifications (e.g., 200×230 px for photos, 140×60 px for signatures).
Download your compressed JPEG image instantly, completely private and ready to submit.
Many public recruitment exams, university admission boards, and government registration websites enforce strict file size limits between 10KB and 20KB. These legacy constraints were originally designed to manage database BLOB storage and bandwidth across millions of simultaneous applicants. Submitting a file even one byte over 20KB triggers immediate rejection.
Modern smartphone photos measure 3MB to 12MB, making manual resizing difficult without the right tools. This tool automatically dials compression down iteratively until the image lands cleanly beneath 20KB without manual trial and error.
For applicant portraits, typical portals mandate dimensions such as 200×230 pixels (or 3.5×4.5 cm at 150 DPI). At this resolution, a well-lit face with a solid light background easily compresses under 20KB while preserving identifiable features.
For handwritten signatures, standard portal specifications recommend roughly 140×60 pixels. Signatures written in clear black or dark blue ink on clean unlined paper compress efficiently because white background pixels take up negligible data in JPEG encoding.
Your applicant photograph and personal signature are sensitive biometric and legal credentials. Many free online compressors upload your files to remote cloud servers where they may be logged or retained. YuliusBox executes all encoding directly on your device via WebAssembly — zero bytes ever leave your browser.
Portals processing hundreds of thousands of candidates simultaneously limit database storage and guarantee rapid server-side batch processing. A 10–20KB limit ensures millions of records load quickly on government servers.
Yes, provided the source image has clean contrast. Write with dark ink on blank white paper in good lighting. When downscaled to typical signature bounds (around 140×60 px), the strokes remain crisp and fully legible under 20KB.
Most civil service and entrance exam forms request dimensions around 200×230 pixels or 3.5×4.5 cm. Verify the exact pixel or millimeter requirements on your application notice before submitting.
Never. The compression algorithm executes locally on your device using client-side WebAssembly and HTML5 Canvas. Your files are never transmitted across the network or stored in any database.