We have all seen it: You upload a stunning high-res photo to Facebook, and 5 seconds later it looks like a pixelated mess from 2005.
The Compression Engine
Facebook processes billions of photos a day. To save money, they aggressively compress everything. If your photo is 'too big' or has the wrong dimensions, their server hammers it with a sledgehammer.
The Golden Settings
To bypass the sledgehammer, you need to resize your photo yourself before uploading. Give Facebook exactly what it wants.
- Long Edge Rule: Resize your photo so the longest side is exactly 2048 pixels.
- Format: Use JPG with sRGB color profile.
- File Size: Keep it under 100KB if possible (yes, really).
Why 2048?
This is the magic number. If an image is 2048px wide, Facebook often assumes it is 'Already Optimized' and applies much lighter compression.
How to do it?
You don't need Photoshop. Use LocalImageConverter's Resizer to set the width to 2048px and export as a high-quality JPG. Upload that file, and enjoy the crispness.