What is PDF Compression?
PDF compression is exactly what it sounds like. It is intended for making PDF files smaller. It is done through a software that uses various algorithms that will manipulate the file in a way that ultimately, the size becomes smaller substantially. The algorithms used depends on what kind of file you are trying to compress in the first place, such as photos, text-based, graphs, etc.
Why compress at all?
A lot of people might wonder, why compress at all? The most obvious reason would be to save space. Yes, it is true that you can always purchase more memory to store more files but that is only short term solution and a very expensive one too. Another problem that might arise that people don't notice usually is when they need to start using these files. What I mean is sending and receiving as a file or as an email attachment. Files that are too big take too much time to transmit and in some cases with email servers, impossible. A wiser decision would be to compress your files to eliminate these problems.
If you are looking for free compression, you should check out CVISION's online tool or download a trial version of PdfCompressor..They offer free compression but of course only a limited version. So if you are just compressing a few files at home, this might work out for you. But, if you are a company looking for a long term solution, then you should consider purchasing the full commercial product. You can download the trial to get a feel for it and if you have any questions, just contact CVISION.