Acrobat to convert a simple word file to the .pdf file or you can use one of the free services on the Internet. These services do a simple job of conversion with some encryption. If your file is large or complicated you may want to invest in the Adobe program. You can also download Open Office which is an open source word processing program that will export files as .pdf files maintaining the integrity of all your links. You should consider encryption to prevent changes to your work that will protect your credibility and integrity.
Publishing to mp3 files is simple and economical. You’ll need a decent microphone and a free shareware program called Audacity. With Audacity you can record directly from your computer, manipulate the files and export as an MP3 file. If you have customers who will want a hard CD copy you can use an MP3 to CD converter. You’ll find a