Download and install a PDF-creator program (see Resources). This program creates a printer option in your printers folder called PDF Creator. Unlike a regular hardware-based printer, this printer will save your document to PDF format, where it will appear exactly as it would if you printed the document on a normal printer.
Using the word processor you used to write the eBook, open up the document that contains what you want to make your eBook from.
You may wish to spend some time making any final changes you feel are required, such as any sentence editing, paragraph adding or deleting, or restructuring the layout of the book.
When you feel the book is ready, print the file. Be sure to select the PDF Creator printer at the prompt.
At the next prompt, click on the Save button. Be sure to specify the name of the file and where PDF Creator should put it.