Guides
Practical notes on image sizes and social specs, and what to match to what.
Vertical video sizes: Reels, Shorts, TikTok
All three use 1080x1920. What differs is where the interface covers the frame.
Updated 2026-08-06Matching a size without losing quality
Scaling up costs detail. Filling a background does not. Knowing the difference solves most cases.
Updated 2026-08-06When an iPhone HEIC photo will not open
Browsers cannot read HEIC. One setting on the iPhone stops it happening again.
Updated 2026-08-06Why profile pictures crop badly
You upload a square and the service masks it into a circle. The corners have to be planned for.
Updated 2026-08-06Combining several photos into one
Choose a layout, a gap, and a background. Each photo can be repositioned inside its own cell.
Updated 2026-08-06