Sometimes I receive PDF files that open with Preview (Version 7.0 (826.4), Mavericks) with the following message:
To view the full contents of this document, you need a later version of the PDF viewer. You can upgrade to the latest version of Adobe Reader from www.adobe.com/products/acrobat/readstep2.html For further support, go to www.adobe.com/support/products/acrreader.html
or sometimes the message is same same but different:
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.
Windows is either a registered trademark or a trademark of Microsoft Corporation in the United States and/or other countries. Mac is a trademark of Apple Inc., registered in the United States and other countries. Linux is the registered trademark of Linus Torvalds in the U.S. and other countries.
Here you can find a real life example PDF (Thanks to @Tetsujin), Canadian immigration application
I dislike Abobe's bloatware so much that I will not install their Acrobat Reader on my Mac. Ever.
When I use a Windows machine and open this PDF with Acrobat Reader there it contains a form with dropdowns and input fields.
Is there a way to open this pdf in OS X? I would prefer the Preview.app.