Why your photo is sideways and how to fix it
Your camera never rotated the picture. It wrote a note saying which way was up, and something downstream ignored it. Here is the mechanism behind sideways uploads...
Image Formats
Understand different image formats: JPG, PNG, WEBP, GIF, and more
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What a RAW file actually is
A RAW file is not an image. It is the sensor's unprocessed readings plus a set of instructions nobody has carried out yet. Here is what that means for bit depth...
Which image formats will still open in twenty years
Format longevity has almost nothing to do with quality and everything to do with how many decoders exist. That makes JPEG and TIFF the safest archival bets...
Animated GIF vs video: which one you actually want
GIF is a 1987 format with a 256-colour palette and no motion compression, which is why a short clip can weigh an order of magnitude more as a GIF than as a video...
AVIF vs WebP in 2026: Which Image Format Actually Wins?
AVIF adoption grew 386% in two years while JPEG keeps fading. But does that mean you should drop WebP and go all-in on AVIF? Here is the honest comparison with real...
How to Convert SVG to PNG (Free, at Any Resolution)
SVG is perfect for logos and icons, but not every app accepts it. Learn when you need a PNG instead, and how to convert SVG to PNG at any size for free in your...
How to Compress and Convert AI-Generated Images for the Web
AI image generators produce large, heavy files that slow down websites. Learn how to resize, convert, and compress AI-generated images so they load fast and fit...
How to Convert PDF to JPG and Images to PDF (Free)
Need to turn PDF pages into images, or combine photos into a single PDF? Learn how to do both for free in your browser, with no watermarks and no uploads.
sRGB vs CMYK: Which Colour Profile to Use for Web and Print
Upload an image to a website and it suddenly looks faded and dull? Your colour profile is probably wrong. This guide explains the difference between sRGB and CMYK...
PNG Transparency: How to Create and Use Images With Clear Backgrounds
PNG transparency lets you layer images over any background without white boxes or hard edges. This guide explains how PNG alpha channels work, when to use...
Image DPI and Resolution Explained: Web vs Print
Confused about DPI, PPI, pixels, and resolution? You're not alone. This guide cuts through the jargon and explains exactly what DPI means for web images versus...
JPG vs PNG vs WEBP vs AVIF: Which Image Format to Use in 2026
A comprehensive comparison of JPG, PNG, and WEBP image formats. Learn when to use each format for the best quality, file size, and browser compatibility.