Developed in 1993 by Adobe Systems PDF format is still dominant and universal, contrary to the frequent conflicts between two different text editors, the content of a document fonts, images, layout PDF will be the same, whether you are on Windows, Mac or Linux. For this reason, its use was first developed in the professional world but also artistic, this file format has gradually democratized and now that has never received such a document in his mailbox?
Would be great if all the tools for reading and editing made available to the public were too heavy or expensive, because let's face it, the download of Adobe Reader is a real ordeal. also, who could afford to invest in Adobe Acrobat for occasional use, there is also no surprise that the company's products are leading the illegal downloads. Fortunately a democratization process was initiated and the PDF is now open to developers wishing to integrate this technology, if the company is careful not to share all of its patents, however, we find excellent alternatives at both readers and converters that publishers in their own right, so what are these programs that will keep you on the right path legality here an overview is not exhaustive but nevertheless very interesting.