(PDF decryption removes restrictions. PDF.Unlocker.v2.0. The Chinese Chinese version of the green version includes the following attachments:
PDFUnlockerv2.0 Chinese version\PDF-Unlocker-SamplePDF.pdf
PDFUnlockerv2.0 Chinese version\PdfSharp.dll
PDFUnlockerv2.0 Chinese version\PDFUnlocker.exe
PDFUnlockerv2.0 Chinese version\PDFUnlocker.exe.config
.....)