The PixSqueeze library
Understand your images, not just their file size.
Plain-language notes on formats, dimensions, quality and the upload rules that bring you here.
File size basics
Why websites require specific image sizes
Understand file-size and pixel limits, why upload forms enforce them, and how to prepare an image that passes both checks.
6 min read
Format guide
JPEG vs PNG: which compresses better?
A practical comparison of JPG and PNG compression for photos, screenshots, graphics, transparency and strict upload limits.
7 min read
Step by step
How to reduce photo size for job applications
Prepare a clear application photo that meets format, pixel and KB limits without repeated failed uploads.
6 min read
Compression guide
How image compression affects quality
Learn what changes during image compression and how to keep the details that matter while meeting a smaller file-size target.
7 min read