: Use Shift+Ctrl+F (Windows) or Shift+Cmd+F (Mac) to open the full search pane. This allows you to search across multiple PDFs at once.

Navigate to the menu and select Scan & OCR or Recognize Text . Choose Recognize Text in This File .

To "make piece" (likely a typo for "make searchable") out of your Adobe search results, you can use the tool to convert static PDFs into searchable documents. How to Make PDFs Searchable in Adobe Acrobat

In the settings, ensure the is set to Searchable Image to maintain the original look while adding a searchable text layer.

: For massive documents (e.g., several thousand pages), you can create an embedded index via Basic > Search > Index to speed up future searches. Building Search Pages (Adobe Dreamweaver)