private void button2_Click(object sender, EventArgs e)
{
try
{
if (!String.IsNullOrEmpty(txtLicense.Text) && !lnkPDF.Text.Equals("Select a PDF File To Encrypt"))
{
Document document = new Document(lnkPDF.Text);
// Apply restrictions on all privileges
DocumentPrivilege documentPrivilege = rdoForbid.Checked == true ? DocumentPrivilege.ForbidAll : DocumentPrivilege.AllowAll;
documentPrivilege.AllowScreenReaders = chkScreenReaders.Checked;
documentPrivilege.AllowAssembly = chkAssembly.Checked;
documentPrivilege.AllowCopy = chkCopy.Checked;
documentPrivilege.AllowModifyAnnotations = chkModifyAnnotations.Checked;
documentPrivilege.AllowModifyContents = chkModifyContent.Checked;
documentPrivilege.AllowPrint = chkPrint.Checked;
// Encrypt the file with User and Owner password.
// Need to set the password, so that once the user views the file with user password
document.Encrypt(txtUser.Text, txtOwner.Text, documentPrivilege, CryptoAlgorithm.AESx128, false);
// Save updated document
document.Save("SetPrivileges_out.pdf");
MessageBox.Show("PDF has been encrypted successfully.", "Success");
}
else
{
MessageBox.Show("Please select License and PDF file first.", "No File Selected");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error");
}
}
public void PutPrivilegesTest()
{
string name = "4pages.pdf";
UploadFile(name, name);
DocumentPrivilege documentPrivilege = new DocumentPrivilege()
{
AllowCopy = false,
AllowPrint = false
};
var response = PdfApi.PutPrivileges(name, documentPrivilege, folder: TempFolder);
Assert.That(response.Code, Is.EqualTo(200));
}
private MemoryStream AddWatermarkToFile(Document pdfDocument, ref PdfFileStamp pdfStamp, string sUserName, DateTime dtCurrentDate, string sCompany)
{
string sTextDate = dtCurrentDate.ToString("dd/MM/yyyy HH:mm:ss", CultureInfo.InvariantCulture);
FormattedText wtext = new FormattedText("Confidential", new FontColor(220, 20, 60), new FontColor(255, 255, 255),
Aspose.Pdf.Facades.FontStyle.HelveticaBold,
EncodingType.Winansi, true, 35);
wtext.AddNewLineText(sUserName, 5);
wtext.AddNewLineText(sTextDate, 5);
int nPageCount = 1;
foreach (Aspose.Pdf.Page pg in pdfDocument.Pages)
{
//get the page size position for each page
Aspose.Pdf.Rectangle rtPage = pg.TrimBox;
AddWatermarkToPage(rtPage.Width, rtPage.Height, pg, sUserName, sTextDate);
nPageCount++;
}
MemoryStream outStream = new MemoryStream();
//save updated PDF file
DocumentPrivilege pv = null;
pv = DocumentPrivilege.AllowAll;
pv.ChangeAllowLevel = 0;
pv.CopyAllowLevel = 1;
pv.PrintAllowLevel = 2;
pdfStamp.Document.Encrypt("", new Guid().ToString(), pv, CryptoAlgorithm.RC4x128, false);
pdfStamp.Save(outStream);
return(outStream);
}
public static void Run()
{
// ExStart:SetPrivilegesOnFile
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdfFacades_SecuritySignatures();
// Create DocumentPrivileges object
DocumentPrivilege privilege = DocumentPrivilege.ForbidAll;
privilege.ChangeAllowLevel = 1;
privilege.AllowPrint = true;
privilege.AllowCopy = true;
// Create PdfFileSecurity object
PdfFileSecurity fileSecurity = new PdfFileSecurity();
fileSecurity.BindPdf(dataDir + "input.pdf");
// Set document privileges
fileSecurity.SetPrivilege(privilege);
fileSecurity.Save(dataDir + "SetPrivilegesOnFile_out.pdf");
// ExEnd:SetPrivilegesOnFile
}
public static void Run()
{
// ExStart:SetPrivileges
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_SecuritySignatures();
// Load a source PDF file
using (Document document = new Document(dataDir + "input.pdf"))
{
// Instantiate Document Privileges object
// Apply restrictions on all privileges
DocumentPrivilege documentPrivilege = DocumentPrivilege.ForbidAll;
// Only allow screen reading
documentPrivilege.AllowScreenReaders = true;
// Encrypt the file with User and Owner password.
// Need to set the password, so that once the user views the file with user password,
// Only screen reading option is enabled
document.Encrypt("user", "owner", documentPrivilege, CryptoAlgorithm.AESx128, false);
// Save updated document
document.Save(dataDir + "SetPrivileges_out.pdf");
}
// ExEnd:SetPrivileges
}
