资讯

Upload the password-protected file, enter the password, and download the unlocked PDF. CleverPDF claims to delete your files within 30 minutes of upload.
Microsoft Word offers the ability to password protect PDF files. Read to know how to lock PDF from editing using Microsoft Word.
Adding password protection to a PDF can make the file even more secure and is the best practice when sharing any sensitive information.
Hopefully, Adobe Acrobat provides that feature and allows you to set the protection settings the way it fits your needs. To protect your PDF file against copying and printing on Adobe Acrobat Pro DC: ...
The widely used PDF format supports data-saving encryption, allowing you to protect sensitive documents so that only those with the correct password can access them. In the old days, you’d need a ...
How to encrypt sensitive data? Put it in an encrypted container How to remove encryption from a PDF file How to encrypt and password-protect ZIP files the right way ...