Guest post marketplaces sell placements on other sites. Google treats paid links that pass PageRank as spam. Here is how they work and what the real risk is.

Your iPhone scans documents to PDF using tools already installed. Use Notes or Files, sign without printing, and get results that beat a photo every time.

You can create an Apple Account on an iPhone, a Mac, a Windows PC or the web, with or without a card. Here is each route and the settings worth getting right.

Collate decides whether your printer produces finished sets or stacks of each page. Here is what each setting does, and when uncollated is genuinely faster.