Application portals cap each image at 20 KB, 50 KB, or 200 KB while phone cameras produce multi-megabyte files. Compression downsamples resolution and adjusts JPEG quality until the file fits without obvious blockiness on faces and text.

Siliph Compress Image previews results in the browser so you compare before-and-after clarity with encrypted handling. Batch mode helps when a form requests separate front and back ID images each under the same cap.

Aggressive compression harms OCR—keep text edges sharp when the image will be reassembled into a PDF for verification. For pure photographs, slightly lower resolution is acceptable if dimensions still meet minimum width-height rules.

Auto-deletion within two hours on the free tier, and compression requires no signup—useful at cyber cafés during last-minute exam registrations. Pair with JPG to PDF after sizing each asset.

Exam Photo Resizer adds preset crops for passport dimensions when compression alone cannot hit both pixel and kilobyte targets simultaneously.

Siliph exam tools resize photos and compress scans to meet SSC, IBPS, and UPSC upload limits, processing in the browser for speed on mobile data. Uploads are encrypted, files delete within two hours, and exam prep never requires a Siliph account.