ImgPivot Blog
Image format explainers, step-by-step conversion guides and tips for faster, lighter images.
What Is a HEIC File? iPhone Photos Explained
Your iPhone saves photos as HEIC, not JPG. Here's what the format is, what it does better than JPG, and why it causes so much trouble outside Apple devices.
Latest articles
14 articles
How to Combine Images Into One PDF (Phone or PC)
Got several photos of documents and a form that wants one PDF? Here's how to combine them on any device, in the right order and at a sensible size.
How to Make a PDF Smaller to Email It
Why your PDF is so big, how to shrink it in a minute, and the habits that keep PDFs small in the first place.
How to Convert HEIC to JPG on Windows 10 and 11 (4 Free Ways)
Four free ways to deal with iPhone HEIC photos on Windows, from a quick online conversion to making your iPhone hand over JPGs automatically.
How to Make a Favicon for Your Website (ICO, PNG and SVG)
Turn your logo into a complete favicon set in about ten minutes: the files you need, the HTML to add, and how to fix one that won't appear.
Lazy Loading and Responsive Images: A Practical Guide
Serve each visitor the right image size and only when they need it. How loading="lazy", srcset and sizes work, with examples.
How to Optimize Images for Your Website: 6 Steps That Matter
Six steps that make the biggest difference to how fast your images load, in order of impact, with real numbers.
PNG vs JPG: Which Image Format Should You Use?
We saved a photo and a logo as both PNG and JPG and measured the difference. The results make the choice easy.
How to Reduce Image File Size Without Losing Quality
We took a 516 KB photo down to 22.5 KB. The four steps that shrink images the most, and the order to do them in.
How to Remove Location Data From Photos Before You Share Them
A photo of something you're selling can reveal your home address. How to check for location data, remove it, and stop your camera recording it.