A PDF may have other PDFs attached to it, either as single files or a PDF package. When you open a PDF containing attachments, the Attachment panel opens automatically.
If the attachment is a PDF package, the first PDF in the package opens along with a list of all PDFs in the package. Click a PDF to view it.
You have several options for returning form data.
Click the submit button.
Save and email the form (if enabled by the form creator).
Print and mail the form.
If you filled in the form with the Typewriter tool, print and mail the form.
Print the form, fill it in by hand, and mail it.
These resources are available on the Adobe website:
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