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<blockquote data-quote="Raz0rEdge" data-source="post: 1945728" data-attributes="member: 110816">PDF is a standard owned by Adobe but the specs are shared with all OS' and many applications and can be implemented with no royalties. So that means that PDFs can be viewed on a variety of OS' without the need for any special software.Where you need special software is to actually create PDFs. Adobe Acrobat is one such application, but there are many others as well.A PDF that is compressed on Mac with Preview will be visible by others and will look just as good or bad as it does on your Mac.You seem to be using many different words thinking they all mean the same, they don't. Convertors inherently convert data from one format to another. Compressors tend to reduce size by doing a variety of thing. A compressor dealing with images, and related files will reduce quality to accomplish this. Compressors like Zip accomplish the same task through entirely different means.</blockquote>

[QUOTE="Raz0rEdge, post: 1945728, member: 110816"] PDF is a standard owned by Adobe but the specs are shared with all OS' and many applications and can be implemented with no royalties. So that means that PDFs can be viewed on a variety of OS' without the need for any special software. Where you need special software is to actually create PDFs. Adobe Acrobat is one such application, but there are many others as well. A PDF that is compressed on Mac with Preview will be visible by others and will look just as good or bad as it does on your Mac. You seem to be using many different words thinking they all mean the same, they don't. Convertors inherently convert data from one format to another. Compressors tend to reduce size by doing a variety of thing. A compressor dealing with images, and related files will reduce quality to accomplish this. Compressors like Zip accomplish the same task through entirely different means. [/QUOTE]

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