Suggestion: Create an account at share.acrobat.com and upload the pdf file that you want to provide link to. Provide your own email address in there. Once uploaded, you will get a URL for the file. Now, in your page, provide any text like like "See details Here" and link(hyperlink) it to the URL that you got for that file.
Acrobat provides upto 5 gb of free space to share your documents. And since you own this account, you can always be sure that the file reside at that URL for as long as you dont delete it.