Many TIFF files are stored uncompressed despite the file format having a number of lossless compression methods built in. This results in much larger file sizes, with the only benefit being slightly faster opening times.

You can check if your TIFF images are compressed like this: 1. Right click on an image and select "Properties". 2. Click on the "Details" tab. 3. croll down to the "Image" section and you should see "Compression" which will indicate if it is "Uncompressed" as in this example, or will list the type of compression otherwise.

You can check if your TIFF images are compressed like this:

1. Right click on an image and select "Properties".
2. Click on the "Details" tab.
3. croll down to the "Image" section and you should see "Compression" which will indicate if it is "Uncompressed" as in this example, or will list the type of compression otherwise.

lossless LZW compression

NXPowerLite can now identify TIFF files that are stored uncompressed, and will apply lossless LZW compression to them. As an example of how this works, you can see the uncompressed TIFF image below being reduced from over 29 MB down to just below 13 MB by applying LZW compression: