Preview
A temporary display feature that shows editing or conversion results before final output, allowing users to verify changes.
A preview displays the result of image editing or conversion on screen before final saving or output. It allows users to verify that settings are correct before committing, reducing the need for repeated adjustments.
Image editing previews come in two types: real-time preview (results update instantly as adjustments are made) and batch preview (results shown after pressing a button). Real-time previews are intuitive for filter application and color adjustments, making them beginner-friendly.
The image resize tool and image compression tool let users preview processed images before downloading. For compression, previewing helps judge whether the quality degradation is acceptable. Thumbnails are also a form of preview, providing quick visual identification in file listings.