Guides
Plain-language explanations that go with our tools: how things work, how to avoid common mistakes and how to get a better result.
How to Reduce an Image to an Exact File Size for Online Forms
Step-by-step guide to meeting photo and signature size limits on exam, job and government forms without ruining quality.
Merging, Splitting and Organising PDFs: A Practical Guide
How to combine, extract and reorder PDF pages, with page range examples and tips to avoid common mistakes.
Understanding EMI: How Loan Instalments Are Calculated
What an EMI is, the formula behind it, how interest and principal change over time, and how to choose a tenure.
BMI Explained: What It Tells You and What It Does Not
A balanced explanation of Body Mass Index, its categories, limits and better measures to use alongside it.
How to Create and Manage Strong Passwords
Practical rules for strong passwords, passphrases, password managers and two-factor authentication.
QR Code Best Practices: Making Codes People Can Actually Scan
How to create reliable QR codes for links, Wi-Fi and contact cards, with advice on size, colours and error correction.
Using Simple Online Tools to Help Children Learn
Ideas for parents and teachers on using flashcards, clock practice, quizzes and worksheets in short, effective sessions.