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We are aware of the recently disclosed PHP2Shell vulnerabilities (CVE-2026-109618 and CVE-2026-109619) and can confirm Filestack is not impacted by these vulnerabilities.

Image Enhancement

Image enhancement is a group of Processing API tasks that improve the quality of photos.

Tasks

  • upscale: increases the resolution of an image. Options set noise reduction (none, low, medium, high) and style (artwork or photo).
  • enhance: analyzes a photo and corrects color and other qualities
  • redeye: removes red eye from photos

Enhance Presets

Plans with presets can add enhance=preset:NAME. Presets include auto, which picks the best preset for the photo, and vivid, which adds depth and brightness.

Availability

Upscale and enhance are available in the Filestack marketplace and in the Transformations UI. In Filestack Workflows they are in the Advanced Transformations category.

Documentation

Read the Filestack documentation page for this term.

Open the documentation