As per my understanding, I dont think you would be able to search in multiple pdf's however you can use single pdf to make a search.
Below are sample examples for same. https://blog.congruentsoft.com/how-to-extract-text-from-pdf-files-in-salesforce/ https://salesforce.stackexchange.com/questions/34117/is-it-possible-to-search-for-text-within-a-file
Please mark as Best Answer if above information was helpful.
As per my understanding, I dont think you would be able to search in multiple pdf's however you can use single pdf to make a search.
Below are sample examples for same.
https://blog.congruentsoft.com/how-to-extract-text-from-pdf-files-in-salesforce/
https://salesforce.stackexchange.com/questions/34117/is-it-possible-to-search-for-text-within-a-file
Please mark as Best Answer if above information was helpful.
Thanks,