Guides
Practical notes on hitting exact image sizes for passports, visas, resumes, KYC, and other upload limits.
PNG
Compress a PNG to an exact target size
PNG has no quality slider. Here is the strategy KBPass uses, and when you should stay lossless.
2026-03-24
exact KB
What an exact KB image compressor actually does
Why “save at 80% quality” misses upload limits, and how a target-size search is different.
2026-03-12