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Supported Image Formats

Updated

Image Resizer supports common raster image formats that macOS can reliably open, resize, and save.

Supported formats

  • PNG files with the .png extension
  • JPEG files with the .jpg or .jpeg extension
  • TIFF files with the .tif or .tiff extension
  • GIF files with the .gif extension
  • BMP files with the .bmp extension
  • JPEG 2000 files with the .jp2 extension

Unsupported formats

If you try to add an unsupported file, Image Resizer shows an error or skips the file in Bulk mode.

Unsupported formats may include documents, vector artwork, RAW files, videos, archives, or image types that macOS cannot decode through the app.

Output format

Image Resizer preserves the original image format when saving resized files. For example, resizing a .png file creates a resized .png file, and resizing a .jpg file creates a resized .jpg file.

JPEG quality

JPEG and JPEG 2000 outputs are saved using compression. This keeps file sizes reasonable while preserving visual quality.