Articles
Guides to the problems the tools solve — which format to choose, why a file is too large, what your photos give away, and what actually happens when you upload something to a free converter.
SecurityFilesPDFImagesNumbersWritingPrivacy
Security5 minHow strong is your password, really?The advice about capitals, numbers and symbols made passwords harder for people and barely harder for machines. Here is what actually matters.Files6 minHow to email a file that's too large to attachWhy the limit is lower than advertised, and six ways to get the file through — in the order worth trying them.PDF6 minHow to reduce PDF file size without losing qualityFind out what is actually taking the space first. Some fixes are free, some are lossy, and the difference matters.Images6 minImage sizes for every platform: a practical referenceThe dimensions worth knowing, why you should double most of them, and the one calculation that replaces memorising any of it.Numbers5 minFive percentage mistakes that cost people moneyReversing a discount by adding the same percentage back is the expensive one. Here are five errors and why each happens.Writing5 minTitle case vs sentence case: which should you use?Two ways to capitalise a headline, several style guides that disagree, and one decision that matters more than which you pick.Images6 minWebP vs AVIF vs JPEG vs PNG: which image format should you use?Four formats, one decision. What each is actually good at, how much smaller the modern ones really are, and when the old ones are still the right answer.Privacy6 minWhat actually happens when you upload a file to a free online toolYour document goes somewhere. Here is where, how long it stays, and why browsers made the whole arrangement unnecessary.Privacy5 minWhat your photos reveal about you — and how to remove itEvery phone photo carries hidden data, often including exactly where it was taken. What is in there and how to strip it before you post.Files5 minWhy free QR codes expire — and how to make ones that don'tPrinted a QR code that stopped working? The code was fine. The redirect behind it wasn't.