MS Word to PDF displays boxes when viewed in iOS (iPhone / iPad)

If the text in your PDF displays boxes when viewed iPad or iPhone, one of the cause might be the conversion of MS Word to PDF.

Try these simple steps to see if it resolves the issue:

1. Open MS Word
2. File -> Save As
3. Select PDF type
4. Click Options
5. ISO 19005-1 compliant (PDF/A) should be ticked.
6. Try to save the document to PDF and view it in your iPhone / iPad.

I'm using MS Word 2010 and Windows 7.  PDF is properly displayed in desktop and Android devices, but in iOS (UIWebView, Safari, etc), the text is just a series of black boxes; like it's been highlighted with a black marker. The fix above solves the issue.