How to crack an encrypted PDF file

PDF is currently a good electronic document format, has been widely used, and has become a common format for many publishers to publish electronic versions. However, in actual use, many publishers have found that PDFs are encrypted for different purposes, which makes the printing and copying functions of PDF documents invalid, making it difficult for some users who want to print and copy documents. Let me introduce you to use Advanced PDF Password Recovery to crack PDF documents so that they can be printed and copied.

Run the installed Advanced PDF Password Recovery software and display it in the "Status Windows" window. This is an unregistered version. Please click the "Key" icon in the toolbar to enter the registration code.

Click the "Open document" icon in the toolbar to open an encrypted PDF document. If the document is an unencrypted PDF file, the message "File is not encrypted" is displayed.

If the document is an encrypted PDF file, the message "This PDF file is protected, Do you want to remove the protection?" is displayed, and "Yes" is answered.

Then pop up the "Save decrypted file as..." dialog box, select the location and file name of the saved file, and click "Save".

At this point we can see the information "Protection successfully removed" in the Status Windows window of Advanced PDF Password Recovery.

Now that the protected PDF protection flag has been successfully removed, you can use the corresponding PDF document reading editing tool to open the above "save as" document. Please see if it can be printed or copied. ?

A suggestion for software developers: One of the shortcomings of this tool is that there is no batch function. When there are more PDFs to remove the protection, you can only do it one by one. If you can provide batch processing and automatic Naming will be more user friendly. I am also very grateful to the software author for his hard work.

Note: If you want to restore the protection of PDF documents, just select Save As in the Acrobat software, select Standard in the Security section of the Save As dialog box, and then appear Fill in the corresponding password and select the protected item in the dialog box. Open the document is the password to open the PDF document, and Change security is the password.