Fix line length

user-manual/import-export/upload-digital-object.rst

@@ -633,7 +633,12 @@ that include a text layer (e.g., exported Word documents) will work. Search
 results will refer users to the PDF that contains the search term(s), but will
 not reveal the location of the term(s) within the PDF.
 
-Currently, AtoM 2.x truncates indexed PDF text after approximately 16,777,215 characters - which might roughly translate to between 1.5-2.8 million words, depending on the language and words used. This means that any additional text after this limit is reached would not be added to the search index (and therefore would not return any results during searches) - it does **not** mean that the PDF itself will be truncated or missing pages, etc.
+Currently, AtoM 2.x truncates indexed PDF text after approximately 16,777,215
+characters - which might roughly translate to between 1.5-2.8 million words,
+depending on the language and words used. This means that any additional text
+after this limit is reached would not be added to the search index (and
+therefore would not return any results during searches) - it does **not** mean
+that the PDF itself will be truncated or missing pages, etc.
 
 As mentioned above, it is possible to upload multi-page TIFFs or PDF files to
 be displayed with a page viewer and to upload each page as a child object of