This page 8, where it says to attach a copy of the original 8283?

If your noncash contribution was subject to one or more
limits based on your adjusted gross income, and your
unused charitable deduction from a previous year may be
claimed in the present year, you must attach a completed
Form 8283 from the previous year. A copy of the original
Form 8283 from the previous year should be submitted
with the completed Form 8283 for the current year. If an
appraisal was required to be attached to the previous
return, submit a copy of the appraisal. Separate Forms
8283 need to be submitted for each contribution that is
carried over from the previous year to the present year

So you make a pdf of the original and you complete a new form for any current contributions.