It depends. I would suggest look at a PDF for a single page file and try to convert this. If the data is encapsulated postscript, you may have the base text data encoded document. In that case, you might be able to massage the data, but this can be tedious work.. If the data in the document is just rasterized pages, you will only be able to get bigger pages (with blocker output). Have you tried printing on a large format printer? In any case you need some low level knowledge of postscript and PDF documents. Or you could just buy the document in question from the owner of the copyright, or scan a physical copy. in any case, probably a lot of work..
Yes. In a PDF file, you simply need to use a standard file conversion program to open it with PDF. And of course this is something that any other type of file should be able to handle too. In a PDF file, you're doing a really weird thing; you're using “open” to “access” the file. In this case, you're making a copy of it, not just reading it. Yes. In a PDF file, you just need to make sure that your PDF reader and/or application can handle files bigger than 8,000 characters. You shouldn't need to have a working knowledge of postscript to read a PDF.