Creating Scanned Images Depending on Intended Use (for Windows Users)
230
If the same character string is marked several times in the document, the same keyword is added
multiple times in the PDF file.
Total length of all the keywords can be up to 255 characters, including punctuation marks in
between keywords.
When you check keywords in Adobe Acrobat or Adobe Reader, the added keywords may be
displayed with a set of quotation marks (e.g. "ABC").