Guides

Plain-English explanations of the file formats people actually struggle with, and how to deal with them without handing your documents to a stranger.

• What Is a HEIC File (and Why Does Your iPhone Use It)?

  HEIC is the format your iPhone saves photos in. Here's what it actually is, why Apple switched to it, and what to do when something refuses to open one.

• How to Open HEIC Files on Windows 10 and 11

  Windows can't open iPhone HEIC photos out of the box. Here are the four ways to fix it, what each one costs, and which to pick for your situation.

• Why Your Converted JPG Is Bigger Than the Original HEIC

  Converting a 2 MB HEIC photo and getting a 4 MB JPG looks like something went wrong. It didn't. Here's what's happening and how to get the size back down.

• Are Online File Converters Safe?

  Most free converters upload your file to a company's server. Here's what actually happens to it, when that's fine, when it isn't, and how to tell the difference.

• How to Remove Location Data From Photos Before Sharing

  Phone photos quietly record where they were taken, along with your camera model and exact timestamps. Here's how to see that data and strip it before you share.

• How to Merge PDF Files Without Uploading Them

  Combining PDFs usually means handing your documents to a website. Here are the ways to merge them on your own machine instead — on Mac, Windows, or in the browser.

• PNG vs JPG: Which Should You Actually Use?

  A practical guide to choosing between PNG and JPG — what each format is good at, when converting between them helps, and when it makes things worse.