I am trying to fill and edit a PDF, but my mac overtime i open the file reads the following,
Please wait... If this message is not eventually replaced by the proper contents of the document, your PDF viewer may not be able to display this type of document. You can upgrade to the latest version of Adobe Reader for Windows®, Mac, or Linux® by visiting http://www.adobe.com/go/reader_download. For more assistance with Adobe Reader visit http://www.adobe.com/go/acrreader.....
However I have dowloaded this and still no results.
Open the file in Acrobat Reader.
To add to Bernds great advice, if you are using Chrome, Edge or a 64bit version of Firefox, they don't use the Reader plug-in but have their own viewers which really hate some forms. Download the file first by right-clicking the link to the file and saving to your computer, then open in Reader.
The answer is: the file is being opened by the browser and not adobe acrobat reader dc.
We have the same problem and we have narrowed it down to forms created in Adobe Lifecycle, which isn't supported anymore. If you open the file and go to File >> Document Properties you should be able to see if this is the case with your file. If so, I would recreate it using Adobe Acrobat Pro.
Hope this helps.