Use Optical Character Recognition (OCR). Adobe Acrobat Pro has a "Scan & OCR" tool. Free alternatives include OCR.space or Google Drive (upload the PDF, right-click, select "Open with Google Docs").
If you are the legitimate owner (e.g., you purchased it or downloaded from your library), use online tools like Smallpdf or iLovePDF to unlock it—provided you have the legal right to do so. Do not attempt to crack passwords on copyrighted material you do not own. yenny marissa pdf