JPEG compression ratio

Allows you to check if the images in the document were compressed:

• With a lossy compression mechanism, and
• To such an extent that image quality may have deteriorated significantly.

Lossy compression mechanisms remove information from the image during compression. The com­pression ratio indicates how much the image was compressed, and in the case of lossy compression, it is also an indication of how much information was removed from the image.

The following compression mechanisms are or can be lossy: JPEG and JPEG2000.

Possible fixes

No automatic fix provided