If the document is password-protected or encrypted, you must first remove the security restrictions before any editing tools will become active.
PDF-XChange adds permanent "Demo" watermarks if you use without a valid license key (e.g., OCR, digital signatures, or specific editing tools). remove pdf xchange watermark
The most direct way to remove these marks is through the software itself, though there are free workarounds if you don't own a license. 1. Removing Watermarks via PDF-XChange Editor If the document is password-protected or encrypted, you