After copying text using Adobe Acrobat Pro on the Windows platform, the clipboard content will have an extra '\0' can't solve correct

[ZGGSONG]

Describe the bug

On Windows, when I open a PDF file with Adobe Acrobat Pro, the text I get has one more '\0' than the text I get when I open the PDF file with Chrome or FireFox. Then I use the GetText method provided by this library to get the text. The final result shows a special symbol (�)

Submit a PR that fixes the bug

Submit a Pull Request that fixes the bug.