using IronPdf;
// Open an Encrypted File, alternatively create a new PDF from Html
var pdf = PdfDocument.FromFile("encrypted.pdf", "password");
// Get file metadata
System.Collections.Generic.List<string> metadatakeys = pdf.MetaData.Keys(); // returns {"Title", "Creator", ...}
// Remove file metadata
pdf.MetaData.RemoveMetaDataKey("Title");
metadatakeys = pdf.MetaData.Keys(); // return {"Creator", ...} // title was deleted
// Edit file metadata
pdf.MetaData.Author = "Satoshi Nakamoto";
pdf.MetaData.Keywords = "SEO, Friendly";
pdf.MetaData.ModifiedDate = System.DateTime.Now;
// The following code makes a PDF read only and will disallow copy & paste and printing
pdf.SecuritySettings.RemovePasswordsAndEncryption();
pdf.SecuritySettings.MakePdfDocumentReadOnly("secret-key");
pdf.SecuritySettings.AllowUserAnnotations = false;
pdf.SecuritySettings.AllowUserCopyPasteContent = false;
pdf.SecuritySettings.AllowUserFormData = false;
pdf.SecuritySettings.AllowUserPrinting = IronPdf.Security.PdfPrintSecurity.FullPrintRights;
// Change or set the document encryption password
pdf.SecuritySettings.OwnerPassword = "top-secret"; // password to edit the pdf
pdf.SecuritySettings.UserPassword = "sharable"; // password to open the pdf
pdf.SaveAs("secured.pdf");
Imports System
Imports IronPdf
' Open an Encrypted File, alternatively create a new PDF from Html
Private pdf = PdfDocument.FromFile("encrypted.pdf", "password")
' Get file metadata
Private metadatakeys As System.Collections.Generic.List(Of String) = pdf.MetaData.Keys() ' returns {"Title", "Creator", ...}
' Remove file metadata
pdf.MetaData.RemoveMetaDataKey("Title")
metadatakeys = pdf.MetaData.Keys() ' return {"Creator", ...} // title was deleted
' Edit file metadata
pdf.MetaData.Author = "Satoshi Nakamoto"
pdf.MetaData.Keywords = "SEO, Friendly"
pdf.MetaData.ModifiedDate = DateTime.Now
' The following code makes a PDF read only and will disallow copy & paste and printing
pdf.SecuritySettings.RemovePasswordsAndEncryption()
pdf.SecuritySettings.MakePdfDocumentReadOnly("secret-key")
pdf.SecuritySettings.AllowUserAnnotations = False
pdf.SecuritySettings.AllowUserCopyPasteContent = False
pdf.SecuritySettings.AllowUserFormData = False
pdf.SecuritySettings.AllowUserPrinting = IronPdf.Security.PdfPrintSecurity.FullPrintRights
' Change or set the document encryption password
pdf.SecuritySettings.OwnerPassword = "top-secret" ' password to edit the pdf
pdf.SecuritySettings.UserPassword = "sharable" ' password to open the pdf
pdf.SaveAs("secured.pdf")
Install-Package IronPdf
Contraseñas, seguridad y metadatos
Se pueden aplicar configuraciones granulares de metadatos y seguridad. Esto incluye ahora la posibilidad de limitar los documentos PDF para que no se puedan imprimir, sean de sólo lectura y estén encriptados. Soporta encriptación de 128 bits, desencriptación y protección por contraseña de documentos PDF.
Enlaces a documentos relacionados
¿Listo para empezar? Versión: 2024.8 acaba de salir