Guides & tutorials
Practical, no-fluff guides for the tasks these tools solve — written to be useful even if you use different software.
How to Resize an Image Without Losing Quality (2026 Guide)
Pixel sizes, aspect ratios, DPI and the presets every form seems to ask for — explained in plain language.
How to Compress an Image to an Exact Size (20KB, 100KB, 1MB)
Upload forms almost never ask for “good quality” — they ask for a number. Here is how to hit it.
How to Convert HEIC to JPG (iPhone Photos) — Free & Private
Why your iPhone photos won’t open on Windows, and the fastest ways to fix it.
How to Make a GIF from a Video (and Keep It Small)
Start time, fps, width, colours — the four dials that decide whether your GIF is 400 KB or 40 MB.
How to Reduce GIF File Size — 5 Levers, Ranked
The same GIF can weigh 300 KB or 12 MB depending on four settings. Here is the order that hurts least.
How to Fill a PDF Form on Any Device (Free Methods)
Fillable vs scanned PDFs, flattening, signatures — everything you need to return a form without printing it.
How to Create a Transparent Signature PNG (Step by Step)
A 5-minute workflow: shoot, clean, crop, sign. Works with a phone and any document.