Applescript to edit several .pages files and make them have all bold text?

No very little about apple script but I would like to drop a bunch of .pages files on a script and convert all the text to bold

This was my first attempt:

on opentheFiles

tell application "Pages"

repeat with aFile in theFiles

openaFile

set bold to true

set docName to name of front document

-- Remove .pages extension.

set prevTIDs to AppleScript's text item delimiters

set AppleScript's text item delimiters to ".pages"

-- Add .pdf extension.

set docName to first text item of docName & ".pdf"

set AppleScript's text item delimiters to prevTIDs

-- Get folder that dropped file exists in.

tell application "Finder"

set sourceFolder to (container of aFile) as Unicode text

end tell -- Finder

-- Save file to folder that dropped file exists in.

set docPathAndName to sourceFolder & docName

save front document as "SLDocumentTypePDF" in docPathAndName

close front document

end repeat

end tell

end open

Any help will be appreciated!

Kay Fisher