OSX - bulk convert to PDF

OSX has a convert utility that you can use to bulk convert documents in PDF. IN essence if the OS support viewing and printing them, you can convert them.

To convert a single file you can use

/System/Library/Printers/Libraries/convert -f path/to/source.file -o destination.pdf

If you want to convert in bulk you can use AppleScript.

Open Script Editor from /Applications/AppleScript, then in a new script copy and paste

on open input_documents

repeat with this_document in input_documents

set this_document_path to POSIX path of this_document

--display dialog this_document_path

do shell script "/System/Library/Printers/Libraries/convert -f " & quoted form of this_document_path & " -o " & quoted form of this_document_path & ".pdf"

end repeat

end open

then from File Menu select Save As. In File Format select Application. Give it a name, and then you can drag and drop your files onto it, and hey presto converted to PDF.