Which method is ideal to transfer Java scripts from old documents to new ones?

Question

I have at least eight different single pages with specific java scripts and have these options:
Copying from the «all edit java scripts» the whole piece to paste into the same window in the new Acrobat document (sometimes some fields lost function).
Copying the specific java script located in «Document java scripts» i into the same window in the new Acrobat document , also with problems.
Insert the specific page with a java script into the new one Acrobat document. This method has been perfect for the moment although I don't know if it is just orthodox enough to avoid conflicts in the future.

Answer 1

!. Not recommended, you will pull all including fields, and document actions as well as overwrite existing form field and document actions.
2. Possible but could be time consuming.
3. Best choice. I would look at inserting a blank page into the PDF with the code, copy any fields with script to the blank page, save the file and then extract the inserted page. The page will also pickup the document actions and document level JavaScripts.
Another option would be creating an FDF file to add the document level code and actions to a PDF.