The first thing I note about the two screenshots is that they're using different fonts - especially on the iPad, which displays some content in one font, and other content in a different font. That suggests either:
• your Word document on the PC is using a non-standard font your iPad can't access;
• a damaged font on the iPad. For that, see:
Font not displaying properly - Microsoft Community; or
• your Word document has acquired some form of corruption. Corrupt documents can often be 'repaired' by inserting a new, empty, paragraph at the very end, copying everything except that new paragraph to a new document based on the same template (headers & footers may need to be copied separately), closing the old document and saving the new one over it.