LEARN · GUIDES
File & conversion guides.
Short, practical write-ups on file formats and conversion — no fluff, no filler.
How PDF compression actually works
The tradeoffs between file size and image quality, and why some PDFs shrink more than others.
02Choosing the right image format
JPG vs PNG vs WEBP — when each one wins, and what you lose by picking wrong.
03Batch converting without losing quality
How to process dozens of files at once without a compounding loss in fidelity.
04Why in-browser conversion is private by default
What actually happens when a tool claims 'nothing leaves your device,' and a concrete way to check it for yourself.
05HEIC explained: why your iPhone photos won't open everywhere
What HEIC (High Efficiency Image Container) actually is, why your iPhone keeps saving photos in it, and the quickest ways around the compatibility mess it causes.
06What Base64 actually is (and why it's not encryption)
Base64 turns binary data into safe, readable text. It's not encryption, and anyone can reverse it instantly, here's what it actually does, and where it genuinely helps.