I cannot find an answer to why Preview displays this error: It may be damaged or use a file format that Preview doesn’t recognize.
If the file is a PDF and it opens in Adobe reader why not in Preview?
I don't think in all my many years of using Macs I have encountered this. If I author a PDF in Acrobat or Acrobat Pro there is never an issue with opening it in Preview and often it is preferable.
I subscribe to an American photographic site which issues a download-able magazine - one is advised to use Adboe Reader. For all self-evident reasons I would prefer these PDFs to open in Preview but always get this error. The same company also issues an iPad format PDF which does open in Preview without the error.
The company concerned does not communicate well and so I have no hope of an answer from them directly, but would appreciate any comments here on what might be the problem with Preview in this instance.
Many thanks