Is it possible to perform a quality level conversion from Word to PDF and that too for free of cost? Surely! It is possible and reading further would even make you believe how it is so. Comparison of the methods in which conversion process could be carried have been mentioned, discussing how conversion into this format, or .rtf, .doc and various others could be done for which you’d not need shelling any money and this is also without any watermarks or limitations. Options here discussed comprise both, online conversion services and other programs that could be downloaded on your operating system for free.
Will it be probable to do any editing post conversion?
It can be done but the answer to the question relates dependence upon how original the document is and the method in which it had been created. Technically, by making use of a tool you can do any form of editing in electronically created PDF document and if seen deeply, you’d find that a majority of documents available over the Net are created in this format itself. Exception here is that given your document had been scanned form a paper document then in that case converters would consider it more like a photograph and when conversion is done, images would be produced in them instead of producing text