WonderPlugin Lightbox Version 6.8 or above
Is there a method for using the lightbox plugin to link to a specific page of the pdf?
Yes, you could add
#page=PAGENUMBER to the end of the PDF URL, for example, http://www.yourwordpresssite.com/thedoc.pdf#page=2.
A demo is as follows:
The PDF URL must also comply with the following requirements:
- The PDF file MUST be hosted on the SAME DOMAIN as your WordPress website.
- The PDF URL MUST be an absolute URL, that's, the URL must start with http:// or https://.
- Make sure there are no special characters in the PDF URL, for example, apostrophes, double quotes, accented letters etc.