How to unlock a PDF to remove password security: · Open the PDF in Acrobat. · Use the “Unlock” tool: Choose “Tools” > “Protect” > “Encrypt” > “Remove Security.”.
2022年8月19日 — Open the PDF in Acrobat. Use the “Unlock” tool: Choose “Tools” > “Protect” > “Encrypt” > “Remove Security.” · Open the PDF document in Reader.
How to copy text from a secured PDF · Click File on the top toolbar and find Properties. · Click the Security tab. · Use the drop-down menu to choose No Security.
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