Yes, pdfs do take longer to download, but they are much easier to create and upload for the non-professional.
You can create the pages in Word and then use Word’s “save as” option to turn your pages into pdfs. Then you can use a simple ftp program or a file uploader (available through your web hosting service) to post the PDFs to your website.
PDFs can be useful in lieu of html for posting documents that contain multiple pages, allowing the user to print up the pages through their Adobe Acrobat reader.
Restaurant managers, for example, often find the pdf format useful in posting menus online; the format gives them flexibility they might not have without a content management system or knowledge of html.
PDFs forms can also be generated with text fields that can be filled out by the user and then printed out and/or emailed.
One drawback is that pdfs are not searchable; however, for some, the advantages outweigh the disadvantages, giving them more control over their website and allowing them to keep the information posted up to date monthly, weekly and even daily.
If you are sure to rename your PDFs with the same name each time you replace it on your server, there will be no need to relink anything: the new PDF will simply replace the old one and voila! You are in business.