Mobile and troubleshooting editor
Lucas answers the question behind most support tickets: why a file will not open, send or upload on a phone. He writes step-by-step fixes for iPhone, Android and cloud storage, tested on the devices people actually own.
Writes about: mobile file management · iPhone and Android workflows · cloud storage
ZIP opens on every computer and phone, 7z packs smallest and hides file names, RAR adds recovery records. Compare compression, encryption, OS support and limits.
Lucas Ferreira · Sep 27, 2026 · 11 min read
Scan documents to PDF with iPhone Notes, Google Drive, Windows Scan or Image Capture: 300 dpi, grayscale for text, one multi-page file, searchable and small enough to email.
Lucas Ferreira · Aug 26, 2026 · 11 min read
Unzip a ZIP with tools already on your device: Extract All on Windows 11, a double-click on Mac, one tap in iPhone Files or Files by Google. Plus RAR, 7z and error fixes.
Lucas Ferreira · Aug 22, 2026 · 11 min read
Send to Kindle accepts EPUB and converts it for you; MOBI sending ended in 2022. Five routes, the 50 MB and 200 MB limits, what breaks, and when AZW3 by USB is better.
Lucas Ferreira · Aug 21, 2026 · 11 min read