How-to guides from TriVisionTech
Practical walkthroughs on the things our apps and free tools help with - images, passwords, accessibility, money and documents. No fluff, and every guide links to a tool you can use right away.
How to Compress Images Without Losing QualityA practical guide to shrinking photos for the web and email: resize first, pick the right format, and find the quality sweet spot - without visible...Read the guide →How to Create a Strong Password You Can Actually RememberLength beats complexity. Here is how to build passwords that are genuinely hard to crack, why a passphrase is easier to live with, and the mistakes...Read the guide →How to Check Colour Contrast for Accessibility (WCAG Explained)What the AA and AAA contrast levels mean, how the contrast ratio is measured, and how to fix a colour pair that fails - without redesigning...Read the guide →Compound Interest Explained: How Small Monthly Savings GrowThe difference between simple and compound interest, why time matters more than the rate, and how a modest monthly habit turns into a large number.Read the guide →How to Scan Documents With Your Phone (and Get a Clean PDF)Get flat, readable, properly cropped scans from a phone camera: lighting, background, colour mode, multi-page PDFs, and making the text searchable.Read the guide →