Practical Guides for Files, QR Codes & Everyday Tasks
Updated 21 October 2026 · Metro Research
Finish the task with a result you understand. These guides explain how to choose settings, inspect outputs and avoid common mistakes in the toolkit.
Image File Size vs Pixel Dimensions: Get an Upload Right
Learn the difference between KB limits and pixel dimensions, choose JPG, PNG or WebP, and check an image before submitting it.
Use Exact-size File Studio ↗How to Redact a Screenshot Before Sharing It
A practical checklist for hiding sensitive screenshot details with solid redactions, checking crops and reviewing a flattened PNG before sharing.
Use Screenshot Cleaner ↗Static QR Codes: What to Print, Test and Keep Private
Understand static QR codes for websites, Wi-Fi and contacts, choose SVG or PNG, and test your print card before distributing it.
Use Business QR Kit ↗Plan a Meeting Across Time Zones Without Date Confusion
Compare local working hours, account for daylight-saving changes and share a clear meeting link with a standard calendar download.
Use Meeting Planner ↗Create a Consistent Social Image Pack From One Idea
Prepare square, portrait and vertical images or a branded text carousel, then check readability and export the layouts together.
Use Social Pack Builder ↗