If large PDF files give you headaches because they take too much space on your hard-disk, it's probably the right time to give a specialized tool like Nice PDF Compressor a shot because this application has been especially designed to tackle this issue.
The main purpose of the app is to compress PDF files and thus help you save some space. Nice PDF Compressor doesn't come with an interface like you may be used to, instead it has a wizard configuration screen that guides you through the whole compression process.
There are two different algorithms this app uses, namely Flate and RunLength, and three compression levels, default, fastest and maximum so things are not at all complicated insofar as operating the utility is concerned.
When it comes to the actual efficiency of Nice PDF Compressor, our tests revealed that it is rather reduced. The great majority of the output files had the same dimensions as the source PDFs so in terms of gaining some space on the hard drive, this tool didn't do anything noticeable.
Even if it is very easy to use, Nice PDF Compressor simply can't help the user a lot when gaining some extra megabytes is a must. With the compression level set to maximum the software has a minimal impact on the files it is supposed to shrink to a certain extent.
Overall, the Nice PDF Compressor program failed to live up to the expectation at this stage in its development and since the efficiency is close to nil, it's hard for this tool to earn a recommendation.