In Pages, how to insert a PRINT-DATE field into a doc.?

Question

Want to insert a field that will show the date of the doc's printing. 
In MS Word, this is known as 'insert print date'.
How to do so in Pages?  Thanks.

Answer 1

You can define placeholder text in Pages v5.5.2 in any of the six header/footer sections. Think of it as a a field code that when you click on it the text you enter replaces the placeholder text using the same style. By example, I placed a combination of text and placeholder text in the lower left footer segment.
The text and the brackets were selected, and then Format ▸ Advanced ▸ Define as Placeholder Text. Also, because it is in the footer, it is replicated throughout the document. Although you could Insert > Date/Time into this placeholder text, automation may be preferred. I have chosen to use the same date/time style as MS Word uses in its print date field code. You can only change placeholder text programmatically with Pages and AppleScript on Yosemite. Once I run the AppleScript, all placeholder tags are replaced as shown in this image:
You could make this an Automator Service (e.g. run AppleScript action with no input, and output replacement is checked). One could assign a keyboard shortcut to this service too. One click printed date stamp and document sent to default printer.
The AppleScript (Yosemite only).
property tagStr : "[print-date]"
--- used for testing ---
-- set f to POSIX path of ((path to desktop) as text) & "arg.pages"
-- set hf to POSIX file f as alias
set printDate to "" as text
set theTags to {}
tell application "Pages"
      activate
      -- open hf
      tell front document
           set theTags to the tag of every placeholder text whose tag is equal to tagStr
           -- Word print-date field code uses this 12-hour date/time format as mm/dd/YY 00:00 AM/PM
           set printDate to do shell script ("/bin/date +'%D %l:%M %p'") as text
           repeat with i from 1 to count of theseTags
                 set thisTag to item i of theseTags
                 set (every placeholder text whose tag is thisTag) to printDate
           end repeat
           -- use your own System Preferences printer name string
           tell application "Samsung ML-2950 Series (Sammy)"
           activate
           -- no print dialog
                print front document without «class pdlg»
                quit
           end tell
      end tell
      -- close front document saving no
end tell