Decrypt PDF using Go

Decrypt PDF File using Owner Password

You can open, decrypt, and save a password-protected PDF document using the Aspose.PDF for Go via C++. The PDF file is opened with the owner password, decrypted to remove all security restrictions, and then saved as a new, unprotected document.

1. Call OpenWithPassword and provide the file name along with the owner password to access the encrypted PDF.
2. Call the Decrypt method to remove password protection and all associated security restrictions from the document.
3. Save the decrypted PDF using SaveAs.

    package main

    import "github.com/aspose-pdf/aspose-pdf-go-cpp"
    import "log"

    func main() {
        // OpenWithPassword(filename string, password string) opens a password-protected PDF-document
        pdf, err := asposepdf.OpenWithPassword("sample_with_password.pdf", "ownerpass")
        if err != nil {
            log.Fatal(err)
        }
        // Close() releases allocated resources for PDF-document
        defer pdf.Close()
        // Decrypt() decrypts PDF-document
        err = pdf.Decrypt()
        if err != nil {
            log.Fatal(err)
        }
        // SaveAs(filename string) saves previously opened PDF-document with new filename
        err = pdf.SaveAs("sample_without_password.pdf")
        if err != nil {
            log.Fatal(err)
        }
    }