Guides
Practical articles on file formats, compression, and document conversion.
What is HEIC? Why iPhones Use It and How to Convert to JPEG
HEIC is the default photo format on iPhones since 2017. Learn what it is, why Windows can't open it, and how to convert to JPEG for free.
How to Reduce PDF File Size Without Losing Quality
Large PDFs are a pain to email and upload. Learn why PDFs get bloated and how to shrink them for free without making them unreadable.
WebP vs PNG vs JPEG: Which Image Format Should You Use?
A practical guide to choosing the right image format. Understand the tradeoffs between lossy, lossless, and transparency support.
How to Convert Word to PDF Without Microsoft Office
Why PDF is almost always the right format for sharing documents, and how to convert DOCX to PDF for free — no Office required.
How to Compress Images for the Web Without Losing Quality
Large images are the biggest cause of slow websites. Learn what file sizes to target, which format to use, and how to optimize images for free.
How to Convert SVG to PNG, JPEG, or WebP
SVG is a vector format that not every app accepts. Learn when you need a raster version and how to convert for free in your browser.
How to Turn a Photo or Image into a PDF
Forms and portals often require PDF instead of JPEG. Learn why, and how to wrap any image in a PDF for free without uploading it.
What is a TIFF File? When to Use It and How to Convert
TIFF is a lossless professional format used in scanning, print, and archiving. Learn when it makes sense and when to convert to JPEG or PNG.
What is AVIF? Is It Better Than WebP and JPEG?
AVIF is the newest image format on the web — typically 50% smaller than JPEG at the same quality. Learn when to use it and what to watch out for.
How to Convert GIF Files: To WebP, PNG, JPEG, and More
GIF is an aging format with a 256-colour limit. Learn why static GIFs should be converted and what modern formats replace animated GIF.