How it works

Files are often much larger than they need to be. NXPowerLite makes them smaller.

NXPowerLite file optimization software attacks file bloat by eliminating any excess baggage and converting graphics to the most efficient file format and resolution. You're left with a file that looks and feels identical to the original, but is much smaller.

Optimized files remain in their original format, retaining all their attributes and visual content integrity. They don't need to be unzipped and there's no need for special viewing software – so they can be opened and edited by anybody.


“Doesn’t exactly compress files, it wrings them out shaking unneeded bytes out of graphics and included objects to radically reduce their size without affecting their appearance.”

Information Week

Average file size reductions

  • Microsoft PowerPoint presentations: 88%*
  • Microsoft Word documents: 84%*
  • Microsoft Excel spreadsheets: 76%*
  • NXPowerLite can also optimize JPEG and PDF files.

* Source: NXPowerLite Trident Warrior Experimentation and Results, FORCEnet

What NXPowerLite does

File optimization is 'lossy' by design – trimming bloated elements is the only way to permanently reduce file sizes. NXPowerLite removes gratuitous, excess data from your files and makes a number of additional adjustments to optimize them:

PowerPoint, Word & Excel files
  • Removes unnecessary metadata
  • Removes “fast save” information
  • Converts inserted images to the most efficient file format
  • Adjusts the JPEG quality of images (optional)
  • Resizes inserted images to the most appropriate size (optional)
  • Removes cropped areas of inserted images (optional)
  • Flattens embedded documents (optional)
 JPEG files
  • Downsamples chroma information
  • Uses Huffman tables that are optimized for each specific image
  • Adjusts the JPEG quality of images (optional)
  • Resizes images to the most appropriate size (optional)
PDF files
  • Converts inserted images to the most efficient file format
  • Adjusts the JPEG quality of images (optional)
  • Resizes inserted images to the most appropriate size (optional)
  • Removes private application data (optional)

Visual quality of optimized files

'Visual content integrity' means optimized files look identical to the originals in every way. They also retain all of their original attributes and functionality.

Using NXPowerLite's default settings, there is no visible difference between the original and optimized version of a file. The optimized version is just much smaller.

Neuxpower's primary development focus is to ensure the visual content integrity of all files. Our testers optimize many thousands of files and carefully check the results – so you can confidently reduce file sizes without concern for impairment.

Using NXPowerLite with ZIP compression

When you Zip large PDF, Microsoft Office or JPEG files, you often don't get much more than 10% reduction. NXPowerLite has focussed on reducing these specific files, so often it can reduce the same file by 80% or more.

If you already have a ZIP compression solution in place, NXPowerLite can be used alongside it. Optimizing a compressed file (or compressing an optimized file) will often make the file even smaller.

NXPowerLite can shrink PowerPoint, Word, Excel and JPEG files stored within standard ZIP archives, so it doesn’t matter whether you optimize or compress first. This means NXPowerLite can work in harmony with your existing ZIP compression tools and compressed files.