Image prep gets easier when the task is clear. File size, dimensions, format, crop, and background cleanup are separate decisions, and the best tool depends on which one is slowing the workflow down.
A reliable asset-prep process usually uses a small chain of tools rather than expecting one click to solve every image problem perfectly.
Use Compression for Upload and Performance Issues
If the asset already has the right dimensions but the file is too heavy, compression is usually the best first fix.
Use Resizing and Cropping for Layout Control
When the visual problem is dimensions, aspect ratio, or crop framing, resizing or cropping usually matters more than file format alone.
Use Format Conversion for Compatibility Decisions
If you need transparency, smaller web output, or a more compatible file type, choose a format converter before you finalize the asset.