Field notes

Guides

Form limits move. These notes explain the usual numbers and how to use ExactKB without guessing a quality slider.

• UPSC photo size and kilobyte limitsWhat CSE notices usually ask for, and how to land a safe 100 KB JPEG without a studio.
• Compress a passport photo without wrecking the faceIndia Passport Seva and DS-160 style KB + pixel rules, plus what ExactKB will and will not crop.
• HEIC to JPG under 100 KBThe iPhone Camera → form pipeline, including why AirDrop still fails validators.
• Compress without losing quality (the honest version)What you can keep, what you must spend, and when to resize instead of crushing JPEG quality.
• How exact KB compression worksBinary search on canvas quality, when we scale pixels, and why we never pad files.
• Reduce image size in KBThe field sequence: pick the notice’s number, keep JPEG, verify on disk, skip WhatsApp.