By "Search Criteria" and given the comment, I'm guessing you mean the timerange of a search, which you could add to another panel(s) (single value perhaps?) using an additional search. Now since since you cannot have a shared time picker and generate a PDF dashboard, there is some additional work on you the dashboard creator to ensure that the time range of this new search, matches the time ranges of the other searches of the dashboard:
| noop | stats count
| addinfo
| convert timeformat="%FT%T" ctime(*_time)
| eval value = info_min_time. " -> ". info_max_time
| fields value
How this search works line by line is as follows:
| noop | stats count is a trick to create a search with a single result, using the undocumented "do nothing" noop command followed by using stats to count that nothing. (There are other documented ways to accomplish a similar result but noop is a personal favorite )
addinfo tacks on additional fields to each result (our single result in this case) that tell among other things the earliest and latest timestamps selected for the current search
convert we use to change the seconds-since-epoch timestamps to a human readable format. (Exactly what timeformat is desired is up to you of course)
eval to build the string we want to display in the panel
and finally fields to eliminate all other fields. (alternatively you could use the options of the single value panel to pick which field you want to display)
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