Free PDF Compressor 

Compress PDF file and reduce the actual size of PDF document with this completely free PDF Compressor. Free PDF Compressor removes duplicate PDF objects, optionally takes advantage of new compression features of latest PDF specifications that for many classes of documents compresses 30 - 60% better than what is possible in PDF 1.5.
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Compress (adware) 

Compress will compress document files up to 99% and delete unneeded files (such as temp files). When the file is compressed, it will still launch with the same view it launched with before it was compressed. Compress is a free and powerful solution!
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JurikSoft Compression Library 

JurikSoft Compression Library is a .NET component with a set of methods, which allow Compress array of bytes using lossless compression algorithms. Current version of compression library include following compression algorithms: LZSS e.t.c
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HTMLSqueeze 

It's a command line utility to compress / optimize web pages.The power behind HTMLSqueeze is that if you are building a web site on a local intranet, perhaps using ASP (Active Server Pages) you can pass the URL into HTMLSqueeze along with a parameter
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NXPowerLite 

NXPowerLite can reduce the size of your PowerPoint files by over 90%. It's fully customizable, allowing you to choose the ideal balance between compression and quality. This free, fully functional trial version will compress up to 10 presentations.
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Advanced JPEG Compressor 

Advanced JPEG Compressor is a handy tool to compress images. Shrink the large file size of images, optimize pictures for faster loading from the Web, e-mail photos quickly and not exceeding e-mail size limitations, resize images and make thumbnails.
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