How do I link an image field to an pdf file
Hope this will help you,

In Drupal 7 you can use VIEWS Rewrite results to link an IMAGE to a PDF file.

Steps:


In PDF field, exclude it and change the format to "URL of file"


Go to your VIEW -> Image field and under Link image to select NOTHING
And then go to Rewrite results and check Output this field as a
link and give the path of the PDF file. 




You can also use TOKENS by using Replacement patterns for PDF file  path name