To initialize the library use the code snippets below. To register the library you must enter as parameter a valid serial number.

Office 2007, 2010 digital signature

//digitally sign an Office 2007, 2010 document
OfficeSign officeSign = new OfficeSign("enter your serial number");

//you will need a digital certificate for this
DigitalCertificates certificate = new DigitalCertificates();

//load the certificate from a PFX file
officeSign.DigitalSignatureCertificate =
certificate.LoadCertificate(File.ReadAllBytes("c:\\cert.pfx"), "123456");

 //apply the digital signature to the DOCX document
officeSign.SignOfficeDocument("c:\\TestDOCX.docx", "c:\\TestDOCX[signed].docx");

//apply the digital signature to the XLSX document
officeSign.SignOfficeDocument("c:\\TestXLSX.xlsx", "c:\\TestXLSX[signed].xlsx");

DWFx digital signature

//digitally sign an DWFx document
DWFXSign dwfxSign = new DWFXSign("enter your serial number");

//you will need a digital certificate for this
DigitalCertificates certificate = new DigitalCertificates();

//load the certificate from a PFX file
dwfxSign.DigitalSignatureCertificate =
certificate.LoadCertificate(File.ReadAllBytes("c:\\cert.pfx"), "123456");

//optionally, set a signing intent
dwfxSign.SigningIntent = "I approve this drawing";

//optionally, set a signing location
dwfxSign.SigningLocation = "Europe bureau";

//apply the digital signature to the DWFx document
dwfxSig.SignDWFXDocument("c:\\TestDWFX.dwfx", "c:\\TestDWFX[signed].dwfx");

XPS digital signature

//digitally sign an XPS document
XPSSign xpsSign = new XPSSign("enter your serial number");

//you will need a digital certificate for this
DigitalCertificates certificate = new DigitalCertificates();

//load the certificate from a PFX file
xpsSign.DigitalSignatureCertificate =
certificate.LoadCertificate(File.ReadAllBytes("c:\\cert.pfx"), "123456");

//optionally, set a signing intent
xpsSign.SigningIntent = "I am the author of this document";

//optionally, set a signing location
xpsSign.SigningLocation = "Asia branch";

//apply the digital signature to the XPS document
xpsSign.SignXPSDocument("c:\\TestXPS.xps", "c:\\TestXPS[signed].xps");

XML digital signature

//digitally sign an XML document
XMLSign xmlSign = new XMLSign("enter your serial number");

//you will need a digital certificate for this
DigitalCertificates certificate = new DigitalCertificates();

//load the certificate from a PFX file
xmlSign.DigitalSignatureCertificate =
certificate.LoadCertificate(File.ReadAllBytes("c:\\cert.pfx"), "123456");

 //apply the digital signature to the XML document
xmlSign.SignXMLDocument("c:\\TestXML.xml", "c:\\TestXML[signed].xml");

PKCS#7 digital signature

//digitally sign a file in PKCS#7 format
PKCS7Sign pkcs7Sign = new PKCS7Sign("enter your serial number");

//you will need a digital certificate for this
DigitalCertificates certificate = new DigitalCertificates();

//load the certificate from a PFX file
pkcs7Sign.DigitalSignatureCertificate =
certificate.LoadCertificate(File.ReadAllBytes("c:\\cert.pfx"), "123456");

//set a signing reason for this signature
pkcs7Sign.SigningReason = "I approve this document";

//optionally, the file can be time stamped
pkcs7Sign.TimeStamping.ServerURL = new Uri("http://ca.signfiles.com/TSAServer.aspx");

//the file can be saved as .p7s or .p7m file
pkcs7Sign.SignFile("c:\\test.txt", "c:\\test.txt.p7s");

//verify the signature
Console.WriteLine("Number of signatures: "
     + pkcs7Sign.GetNumberOfSignatures("c:\\test.txt.p7s"));

PKCS7SignatureInformation si =
pkcs7Sign.VerifyDigitalSignature("c:\\test.txt.p7s", 1);

Console.WriteLine("Original document name: " + si.DocumentName);

Console.WriteLine("Signature is valid: " + si.CheckSignature(false));

Console.WriteLine("Signing Certificate: " + si.SigningCertificate.SubjectName.Name);
Console.WriteLine("Signing Reason: " + si.SigningReason);
Console.WriteLine("Signing Date: " + si.SigningDate.ToString());
Console.WriteLine("Is timestamped: " + si.IsTimeStamped);

if (si.IsTimeStamped == true)
      Console.WriteLine("TSA Certificate: " + si.TSACertificate.SubjectName.Name);

Also, using FileSignDll SDK any files can be signed in PKCS#7 cryptographic  standard (.p7m or .p7s files). Details about the standard regarding the creation of such structures are published on RFC 3369, standard initiated by RSA Security Data Inc.

PKI Interoperability – FileSignDll SDK can access, use and manage X.509 certificates and associated private keys, stored on cryptocards, USB cryptotokens or PFX files.

FileSignDll SDK can be used on Windows desktop systems. For development you can use one of the following development tools:

- Visual Studio 2010
- Visual Studio 2008
- Visual Studio 2005
- Visual Studio 2003

Operating Systems Compatibility: Windows XP or higher

Programming Languages: C#, VB.NET, ASP.NET, Visual C++. The library requires .NET Framework 3.5 (or higher).

Licensing:

Internal license is used by companies (or freelancers) which need FileSignDll for internal company use, such as custom digital signature software.

Web license is required when you use FileSignDLL in web applications. This license can be used on any number of systems in one company.

Company license is offered to software vendors (freelancers or companies), who develop their software for third-parties (companies or individuals). If you develop a software that will be distributed to other companies or individual users, then you need a Company license.

All licenses can be used by any number of developers from the company.

Technical support: One year of free technical support is offered with every purchase (all licenses).

License type	Price	Buy with PayPal	Buy with credit card
Internal license	65 EUR		not available yet
Web license	90 EUR		not available yet
Company license	210 EUR		not available yet

• Download FileSignDll library (examples incuded) (latest version: 2.0.1 updated on 15.07.2011)
• FileSignDll SDK Quick Manual



Useful links:

• PDFSignDll SDK (for developers)
• Obtain a free digital certificate

Download PDFSignDLL User’s Guide in PDF format

The library PDFSignDll can be used for adding digital signatures and encryption to your PDF files.

To initialize the library use the code snippet below. To register the library you must enter as parameter a valid serial number.

PDFSign PDFSign = new PDFSign("enter your serial number");

In order to add a digital signature, a valid PDF document must be loaded.

//Load a document from an existing file
PDFSign.LoadPDFDocumentFromFile("c:\\source.pdf");

//Load a document from byte[] array
PDFSign.LoadPDFDocumentFromArray(File.ReadAllBytes("c:\\source.pdf"));

//Load a document from an URL
PDFSign.LoadPDFDocumentFromURL(new Uri("http://www.signfiles.com/test.pdf"));

If the PDF document is protected by a password, the password must be specified before calling the load function:

PDFSign.DocumentProperties.Password = "Document p@ssw0rd";

//Load an encrypted document from an existing file
PDFSign.LoadPDFDocumentFromFile("c:\\source.pdf");

In order to digitally sign a PDF file, a digital certificate must be loaded first. The certificates can be loaded from PFX files or Microsoft Store. If the certificate is stored on a smart card (like Aladdin eToken or SafeNey iKey) the public part of the certificate will appear on Microsoft Store.

//load the certificate from a PFX file
PDFSign.DigitalSignatureCertificate =
PDFSign.LoadCertificate(File.ReadAllBytes("c:\\certificate.pfx"), "cert password");

//load the certificate form Microsoft Store
PDFSign.DigitalSignatureCertificate =
PDFSign.LoadCertificateFromStore(false, "", "Digital Certificates",
"Select the signing certificate", DigitalCertificateScope.ForDigitalSignature);

The digital signature can be added to PDF document as a visible (default) or invisible signature. The signature rectangle properties can be specified like this:

PDFSign.VisibleSignature = true;

//some default positions for the signature rectangle
PDFSign.SignatureBasicPosition = BasicSignatureLocation.TopRight;

//the signature rectangle can be set
PDFSign.SignaturePosition = new System.Drawing.Rectangle(30, 30, 120, 70);

//set the signature page
PDFSign.SignaturePage = 1;

//if there are Unicode characters on the signature, the font can be specified
PDFSign.FontFile = "c:\\Windows\\fonts\\Arial.ttf";

//insert an image on the signature rectangle
PDFSign.SignatureImage =  "c:\\signature_graphic.jpg";
PDFSign.SignatureImagePosition = SignatureImageType.ImageAndText;

//set the signature text
PDFSign.SignatureText ="Digitally signed by: Signer Name\n"
+"Email: emailSigner@domain.com\n"
+ "Title: Name Title\n" + "Company: Company name";

To add time stamping information to the digital signature, the Time Stamping server URL must be specified. If the Time Stamping server requires authentication, the username and password must be specified:

//set the time stamping server URL
PDFSign.TimeStamping.ServerURL = new Uri("http://ca.signfiles.com/TSAServer.aspx");

//optionally, the username and password must be specified
PDFSign.TimeStamping.UserName = "user";
PDFSign.TimeStamping.Password = "P@ssw0rd";

To encrypt and digitally sign a PDF document on the same step use the following code:

//append signature must be set to false
PDFSign.AppendSignature = false;

//set the encryption method
PDFSign.Encryption.EncryptionMethod = PDFEncryptionMethod.PasswordSecurity;

//set the document password
PDFSign.Encryption.OwnerPassword = "123456";

//set the restrictions
PDFSign.Encryption.DocumentRestrictions = PDFDocumentRestrictions.AllowNone;

//set the encryption algorithm
PDFSign.Encryption.EncryptionAlgorithm = PDFEncryptionAlgorithm.EnhancedEncryption128BitAES;

Finally, save the PDF on a file:

File.WriteAllBytes("c:\\dest.pdf", PDFSign.ApplyDigitalSignature());

To digitally sign a folder that contains multiple PDF documents use the following code:

PDFSign PDFSign = new PDFSign("enter your serial number");

//set the signing certificate
PDFSign.DigitalSignatureCertificate =
PDFSign.LoadCertificateFromStore(false, "", "Digital certificates",
"Select the signing certificate", DigitalCertificateScope.ForDigitalSignature);

//set the signature properties
PDFSign.SignatureBasicPosition = BasicSignatureLocation.TopLeft;

DirectoryInfo di;
FileInfo[] rgFiles;

//get the pdf files from the folder
di = new DirectoryInfo("c:\\source_dir");
rgFiles = di.GetFiles("*.pdf");

foreach (FileInfo fi in rgFiles)
{
   //for readonly files
   fi.Attributes = FileAttributes.Normal;

   //load the PDF document
   PDFSign.LoadPDFDocumentFromFile(di.FullName + "\\" + fi.Name);

   //set the signature page
   PDFSign.SignaturePage = PDFSign.DocumentProperties.NumberOfPages;

   //digitally sign and save the PDF file
   File.WriteAllBytes("c:\\output_dir\\" + fi.Name, PDFSign.ApplyDigitalSignature());
}

The current AutoCAD file format (.dwfx) is based on ISO/IEC 29500-2:2008 Open Packaging Conventions.

Using this product you can quickly sign multiple files (bulk sign) by selecting input and output directory. This is ideal for batch signing of large number of corporate documents rather than signing each one individually.

Open XML Signer allows you to digitally sign Microsoft Office ™ 2007/2010 documents and Autodesk Autocad ™ DWFx files without any need to purchase additional software. This dramatically reduces the Total Cost of Ownership (TCO).

Interoperability – Signatures produced with Open XML Signer can be verified using Microsoft Office ™ 2007 and 2010 versions (for DOCX, XLSX and PPTX documents) and Microsoft XPS Viewer (for XPS and DWFx documents)

Digital signature in Microsoft Office ™ 2007/2010 (DOCX, XLSX and PPTX documents)

Digital signature in Microsoft XPS Viewer (XPS or .DWFx files)

PKI Interoperability – Open XML Signer is completely PKI neutral and will work with PKI components from any vendor (this includes CAs, certificates, CRLs, smartcards, etc.).

Requirements:

- An X.509 digital certificate (obtain one from here)

- .NET Framework 3.5 available here

- Windows XP or later

Product price: 9 EUR (15 EUR)

What you will also get if you purchase Open XML Signer

- An X.509 Personal Digital Certificate with one year validity

- free updates for one year

• Download Open XML Signer Demo (requires .NET Framework 3.5 available here)

Buy online with PayPal

Useful links:

• Obtain a free digital certificate
• PDF Signer

For the ordered software will be an one-time payment with no annual fees.

If you ordered a desktop application, the registered version will be installed properly only if the previous version will be uninstalled first.

Contact details:
General Information: office@signfiles.com
Sales: sales@signfiles.com

Thank you for your choice to use our products.

PDFEncrypt crypt = new PDFEncrypt();

//password if the document is already encrypted
crypt.LoadedDocumentPassword ="D0cument P@ssword";

//load the PDF document
crypt.LoadPDFDocumentFromArray(File.ReadAllBytes("c:\\source.pdf"));

Password Security

Owner password is set for changing the rights of the PDF file. The owner password is not requested when opening the PDF file but it is requesting when you want to change something in the password protected PDF file that was restricted from modifying.

To set the owner password you can use:

//owner password is used to set the permissions
crypt.OwnerPassword ="owner P@ssw0rD";

User password is for opening (and reading) the PDF file. If you define an user password before generating the PDF file, when someone will want to open the resulting PDF file it will have to enter the user password to open it. So only the ones that know this password can read/open the password protected PDF file.

To set the user password you can use:

//optionally, user password is used to open the document with a password
crypt.UserPassword = "user P@ssw0rD";

Certificate Security

Encrypts a PDF document by using a certificate. The certificate can be loaded from Microsoft Store, PFX, CER, PKCS#7, or X509Certificate2 object.

//load the encryption certificate from .CER file
crypt.EncryptionCertificate = crypt.LoadCertificateFromCER("c:\\encryption_cert.cer");

//load the encryption certificate from Microsoft Store
crypt.EncryptionCertificate =
crypt.LoadCertificateFromStore(false, "", "Encryption Certificates",
"Set the encryption certificate", DigitalCertificateScope.ForEncryption);

Encryption Algorithms

The library can use Standard Encryption RC4 (40 bit),  Standard Encryption RC4 (128 bit), and Enhanced Encryption AES (128 bit) – default.

crypt.EncryptionAlgorithm = PDFEncryptionAlgorithm.EnhancedEncryption128BitAES;

Document Restrictions

Setting document restrictions allows you to customize if a user can copy content, filling form fields, edit content, or print the PDF file.

The library can allow content copying, content copying for accessibility, filling of form fields, printing, or none of them.

crypt.DocumentRestrictions =
PDFDocumentRestrictions.AllowPrinting | PDFDocumentRestrictions.AllowContentCopying;

Encrypt a PDF Using Passwords

PDFEncrypt crypt = new PDFEncrypt();

//load the PDF document
crypt.LoadPDFDocumentFromArray(File.ReadAllBytes("c:\\source.pdf"));

//set the encryption method
crypt.EncryptionMethod = PDFEncryptionMethod.PasswordSecurity;

//set the owner password - for changing the rights of the PDF file.
crypt.OwnerPassword = "1234567";

//set the user password - required for opening (and reading) the PDF file
crypt.UserPassword = "User Password";

//set the encryption algorithm
crypt.EncryptionAlgorithm = PDFEncryptionAlgorithm.StandardEncryption128BitRC4;

//set the document restrictions
crypt.DocumentRestrictions = PDFDocumentRestrictions.AllowNone;

//save the encrypted PDF document on a file
File.WriteAllBytes("c:\\encrypted.pdf", crypt.EncryptPDFFile());

Encrypt a PDF Using Digital Certificates

PDFEncrypt crypt = new PDFEncrypt();

//load the PDF document
crypt.LoadPDFDocumentFromFile("c:\\source.pdf");

//set the encryption method
crypt.EncryptionMethod = PDFEncryptionMethod.CertificateSecurity;

//set the encryption algorithm
crypt.EncryptionAlgorithm = PDFEncryptionAlgorithm.StandardEncryption40BitRC4;

//set the document restrictions
crypt.DocumentRestrictions = PDFDocumentRestrictions.AllowPrinting;

//save the encrypted PDF document on a file
File.WriteAllBytes("c:\\encrypted.pdf", crypt.EncryptPDFFile());

Encryption methods are a free part of PDFSignDll SDK.

If you want to digitally sign a PDF document, please remember that the encryption must be done before the signing operation.

• PDFSignDLL User’s Guide
• PDFSignDll SDK Quick Manual
• Adding PDF encryption using PDFSignDll SDK

FileSignDLL

• FileSignDll SDK Quick Manual

PDF Signer Server

• PDF Signer Server User Manual

Time Stamping

• Adding time stamping information on PDF documents
• Installing a demo TSA Authority on IIS server

PDF Security

• Validating digital signatures in Adobe
• Verifying PDF digital signatures using PDFSignDLL SDK (for developers) 

Root Certificates

• Secure Soft Private CA Root Certificate
• Installing Adobe Security Policy (.fdf file)
• Installing Secure Soft Private CA Root (run as Administrator)
• Validating digital certificates in Windows
• Adding digital signature on Mozilla Thunderbird emails

Certificates provide the foundation of a public key infrastructure (PKI). These are electronic credentials, issued by a certification authority (CA), that are associated with a public and private key pair.

Our Certification Authority solution works as a plugin for most Windows webservers. That means it is not required to operate an extra CA machine.

Benefits:
- X.509 standards compliant
- Easy to use through friendly programs like Adobe Acrobat or PDF Signer
- Supports up to 4096 bit RSA keys

Requirements:
- Windows operating system with IIS
- Microsoft .NET Framework 2.0

To obtain a free digital certificate (for demo purposes only), follow this link:

• Obtain a free digital certificate

If you are interested in running your own Certification Authority service, please contact us.

 Product price: starting with 540 EUR

Useful links:

• X.509 Certificate Generator
• Time Stamping Authority
• Validating digital certificates in Windows 

• PDF Signer
• PDF Encryptor
• Open XML Signer
  
• P7S Viewer
• X.509 Certificate Generator

Signing Software

• PDF Signer
• PDF Signer Server
• XML Signer | Viewer
• P7S Signer | Viewer
• Open XML Signer

Encryption Software

• PDF Encryptor
• XML Encryptor | Viewer
• File Encryptor | Viewer

For Developers

• PDFSignDll (Sample project:  C# – VB.NET – VC++)
• FileSignDll

Digital Certificates

• X.509 Certificate Generator

Other Products

• Time Synchronizer
• Certificate Manager
• HTML Form Filler

Root certificates

• Secure Soft Private CA Root Certificate
• Adobe Security Policy

• PDF Signer
• PDF Signer Server
• XML Signer
• P7S Signer
• Open XML Signer

Encryption Software

• PDF Encryption
• XML Encryption
• File Encryption

For Developers

• PDFSignDll Library
• FileSignDll Library

• X.509 Certificate Generator
• Certification Authority
• Obtain a free SSL certificate

Time Stamping

• Time Stamping Authority
• Time Synchronizer

Management Tools

• Certificate Manager
• HTML Form Filler

PDFSign PDFSign = new PDFSign("Enter your application license here");

//Load the PDF file
PDFSign.LoadPDFDocumentFromArray(File.ReadAllBytes("c:\\source.pdf"));

//Load the certificate from .PFX
PDFSign.DigitalSignatureCertificate =
PDFSign.LoadCertificate(File.ReadAllBytes("c:\\cert.pfx"), "123456");

//Load the certificate from Microsoft Store
//PDFSign.DigitalSignatureCertificate =
PDFSign.LoadCertificateFromStore(false, "", "Digital certificates",
"Select the digital certificate", DigitalCertificateScope.ForDigitalSignature);

//Signing reason & location
PDFSign.SigningReason = "I approve this document";
PDFSign.SigningLocation = "Europe branch";

//Set the signature rectangle attributes
PDFSign.SignaturePage = 1;
PDFSign.SignatureBasicPosition = BasicSignatureLocation.TopRight;

//Custom signature position
//PDFSign.SignaturePosition = new System.Drawing.Rectangle(30, 30, 100, 150);

//insert an image on the signature
PDFSign.SignatureImage = "c:\\signature_image.jpg";
PDFSign.SignatureImagePosition = SignatureImageType.ImageAsBackground;

//Set the PDF signature properties
PDFSign.SigningReason = "Your signing reason";
PDFSign.SigningLocation = "Your signing location";

//signature text that will appear on the signature rectangle
PDFSign.SignatureText =
"Signed by:" + PDFSign.DigitalSignatureCertificate.GetNameInfo(
X509NameType.SimpleName, false) + "\n" +
"Date:" + DateTime.Now.ToString("yyyy.MM.dd HH:mm") + "\n" +
"Reason:"  + PDFSign.SigningReason;

//Time stamp the PDF file
PDFSign.TimeStamping.ServerURL = new Uri("http://ca.signfiles.com/TSAServer.aspx");

//digitally sign the PDF file
File.WriteAllBytes("c:\\dest.pdf", PDFSign.ApplyDigitalSignature());

• Download PDFSignerDll Demo library (.DLL only)
• Download PDFSignDll C# Sample project

Visual Basic.NET Code Example

Dim PDFSign As New PDFSign("Enter your application license here")

'Load the PDF file
PDFSign.LoadPDFDocumentFromArray(System.IO.File.ReadAllBytes("c:\source.pdf"))

'Load the certificate from .PFX
PDFSign.DigitalSignatureCertificate =
PDFSign.LoadCertificate(System.IO.File.ReadAllBytes("c:\cert.pfx"), "123456")

'Load the certificate from Microsoft Store
'PDFSign.DigitalSignatureCertificate =
PDFSign.LoadCertificateFromStore(False, "", "Digital certificates",
"Select the digital certificate", DigitalCertificateScope.ForDigitalSignature)

'Signing reason & location
PDFSign.SigningReason = "I approve this document"
PDFSign.SigningLocation = "Europe branch"

'Set the signature rectangle attributes
PDFSign.SignaturePage = 1
PDFSign.SignatureBasicPosition = BasicSignatureLocation.TopRight

'Custom signature position
'PDFSign.SignaturePosition = New System.Drawing.Rectangle(30, 30, 100, 150)

'insert an image on the signature
PDFSign.SignatureImage = "c:\signature_image.jpg"
PDFSign.SignatureImagePosition = SignatureImageType.ImageAsBackground

'Set the PDF signature properties
PDFSign.SigningReason = "Your signing reason"
PDFSign.SigningLocation = "Your signing location"

'signature text that will appear on the signature rectangle
PDFSign.SignatureText =
("Signed by:" & PDFSign.DigitalSignatureCertificate.GetNameInfo(
Security.Cryptography.X509Certificates.X509NameType.SimpleName, False) & vbLf &
"Date:" & DateTime.Now.ToString("yyyy.MM.dd HH:mm") & vbLf &
"Reason:") + PDFSign.SigningReason

'Time stamp the PDF file
PDFSign.TimeStamping.ServerURL = New Uri("http://ca.signfiles.com/TSAServer.aspx")

'digitally sign the PDF file
System.IO.File.WriteAllBytes("c:\dest.pdf", PDFSign.ApplyDigitalSignature())

• Download PDFSignerDll Demo library (.DLL only)
• Download PDFSignDll Visual Basic.NET Sample project

Visual C++ Code Example

PDFSign ^ PDFSignObj = gcnew PDFSign("Enter your application license here");

//Load the PDF file
PDFSignObj->LoadPDFDocumentFromArray(System::IO::File::ReadAllBytes("c:\\source.pdf"));

//Load the certificate from .PFX
PDFSignObj->DigitalSignatureCertificate =
PDFSignObj->LoadCertificate(System::IO::File::ReadAllBytes("c:\\cert.pfx"), "123456");

//Load the certificate from Microsoft Store
//PDFSignObj->DigitalSignatureCertificate =
PDFSignObj->LoadCertificateFromStore(false, "", "Digital certificates",
"Select the digital certificate", DigitalCertificateScope::ForDigitalSignature);

//Signing reason & location
PDFSignObj->SigningReason = "I approve this document";
PDFSignObj->SigningLocation = "Europe branch";

//Set the signature rectangle attributes
PDFSignObj->SignaturePage = 1;
PDFSignObj->SignatureBasicPosition = BasicSignatureLocation::TopRight;

//Custom signature position
//PDFSignObj->SignaturePosition = System::Drawing::Rectangle(30, 30, 100, 150);

//insert an image on the signature
PDFSignObj->SignatureImage = "c:\\signature_image.jpg";
PDFSignObj->SignatureImagePosition = SignatureImageType::ImageAsBackground;

//Set the PDF signature properties
PDFSignObj->SigningReason = "Your signing reason";
PDFSignObj->SigningLocation = "Your signing location";

//signature text that will appear on the signature rectangle
PDFSignObj->SignatureText =
"Signed by:" + PDFSignObj->DigitalSignatureCertificate->GetNameInfo(
System::Security::Cryptography::X509Certificates::X509NameType::SimpleName, false) + "\n" +
"Date:" + DateTime::Now.ToString("yyyy.MM.dd HH:mm") + "\n" +
"Reason:" + PDFSignObj->SigningReason;

//Time stamp the PDF file
PDFSignObj->TimeStamping->ServerURL = gcnew Uri("http://ca.signfiles.com/TSAServer.aspx");

//digitally sign the PDF file
System::IO::File::WriteAllBytes("c:\\dest.pdf", PDFSignObj->ApplyDigitalSignature());

• Download PDFSignerDll Demo library (.DLL only)
• Download PDFSignDll Visual C++ Sample project

PKI Interoperability – PDFSignDll SDK can access, use and manage X.509 certificates and associated private keys, stored on cryptocards, USB cryptotokens or PFX files.

PAdES standard – PDFSignDll SDK is fully compatible with PAdES Part 2 (ETSI TS 102778-2).

RSA 2048 and SHA 256 algorithms – Our library can digitally sign and time stamp PDF documents using RSA 2048 or higher key length and SHA 256, SHA 512 according to ETSI TS 102 176-1 V2.0.0 (“ALGO Paper”).

PDFSignDll SDK can be used on Windows desktop systems. For development you can use one of the following development tools:

- Visual Studio 2010
- Visual Studio 2008
- Visual Studio 2005
- Visual Studio 2003

Operating Systems Compatibility: Windows XP or higher

Programming Languages: C#, VB.NET, ASP.NET, Visual C++. The library requires .NET Framework 2.0 (or higher) available here.

Licensing:

Internal license is used by companies (or freelancers) which need PDFSignDll for internal company use, such as custom digital signature software.

Web license is required when you use PDFSignDLL in web applications. This license can be used on any number of systems in one company.

Company license is offered to software vendors (freelancers or companies), who develop their software for third-parties (companies or individuals). If you develop a software that will be distributed to other companies or individual users, then you need a Company license.

The license for PDFSignDll is a lifetime license. There is no additional cost like monthly / annual fees or fees per use. When a new version is released you can continue using your purchased version as usual.

All licenses can be used by any number of developers from the company.

Technical support: One year of free technical support is offered with every purchase (all licenses).

License type	Price	Buy with PayPal	Buy with credit card
Internal license	65 EUR
Web license	90 EUR
Company license	210 EUR

• Download PDFSignDll Demo library (.DLL only) (latest version: 6.0.4 updated on 06.10.2011)
• Download PDFSignDll Sample project: C# – Visual Basic.NET – Visual C++
• Code example: C# – Visual Basic.NET – Visual C++
• PDFSignDLL User’s Guide
• PDFSignDll SDK Quick Manual

Useful links:

• Validating digital signatures in Adobe
• Verifying PDF digital signatures using PDFSignDLL SDK
• Adding PDF encryption using PDFSignDll SDK

PDF Encryptor can be used to protect your PDF files with 128-bit strength using digital certificates or passwords, set all permissions (such as copying, editing, printing, selecting text and graphics, fill in etc), and prevent PDF files from being printed, changed or copied.

XML Encryption

XML Encryptor allows you to encrypt XML files by using a digital certificate. Using this product you can quickly encrypt multiple files (bulk encryption) by selecting input and output directory. This is ideal for batch encryption of a large number of corporate XML files rather than encrypting each one individually.

File Encryption

File Encryptor (P7M) allows you to encrypt files by using a digital certificate. Using this product you can quickly encrypt multiple files (bulk encryption) by selecting input and output directory. This is ideal for batch encryption of a large number of corporate files rather than encrypting each one individually. The encrypted files will be saved with P7M extension.

Certificate Manager

LDAP Certificate Browser (Certificate Manager) may be used to manage the X.509 certificates from your CA hierarchy. This tool allows you to obtain detailed information about user certificates stored on LDIF file.

Time Synchronizer

Time Synchronizer is a time client to synchronize the computer clock. The time client receives the curent time from a time server located in your local network or somewhere in the internet.

HTML Form Filler

HTML Form Filler is a free solution that automates the process of filling out the digital certificate enrollment web form.

 Interoperability – The files encrypted with File Encryptor has the P7M extension and is (mime-type) application/pkcs7-enveloped-data type. Details about the standard regarding the creation of such structures are published on RFC 3369, standard initiated by RSA Security Data Inc.  

PKI Interoperability – File Encryptor (P7M) is completely PKI neutral and will work with PKI components from any vendor (this includes CAs, certificates, CRLs, smartcards, etc.).  

 Requirements:  

- An X.509 digital certificate (obtain one from here)  

- .NET Framework 2.0 available here  

- Windows XP or later  

Product price: 25 EUR  

• Download File Encryptor Demo (.NET Framework 2.0 available here)
• Purchase File Encryptor

File Decryptor

File Decryptor (P7M and P7E file extension) lets you view files encrypted by File Encryptor or other encryption software that uses digital certificates for encryption operation. 

 Requirements:  

- .NET Framework 2.0 available here  

- Windows XP or later  

Product price: FREE   

• Download File Decryptor (.NET Framework 2.0 available here)

Useful links:  

• Obtain a free digital certificate
• File Signer (P7S)
• PDF Encryptor

Interoperability – Encrypted files produced with this product may be verified using standard XML Decryptor products.

PKI Interoperability – XML Encryptor is completely PKI neutral and will work with PKI components from any vendor (this includes CAs, certificates, CRLs, smartcards, etc.).

Requirements:

- An X.509 digital certificate (obtain one from here)

- .NET Framework 2.0 available here

- Windows XP or later

Product price: 25 EUR

• Download XML Encryptor Demo (.NET Framework 2.0 available here)
• Purchase XML Encryptor

XML Decryptor

XML Decryptor lets you view XML files encrypted by XML Encryptor or other encryption software that uses digital certificates for encryption operation.

 Requirements:

- .NET Framework 2.0 available here

- Windows XP or later

Product price: FREE

• Download XML Decryptor (.NET Framework 2.0 available here)

Useful links:

• Obtain a free digital certificate
• XML Signer
• PDF Signer

PDF Encryptor allows you to encrypt existing PDFs using digital certificates or passwords. For example you can encrypt a PDF without to allow to print it. The button to print the file will be disabled in Acrobat Reader application, you also can encrypt a PDF allowing the user to read it only if he know the correct password.

Requirements:

- .NET Framework 2.0 available here

- Optional, an X.509 digital certificate (obtain one from here)

- Windows XP or later

Product price: 9 EUR (15 EUR)

• Download PDF Encryptor Demo (.NET Framework 2.0 available here)

Buy online with PayPal

Useful links:

• Obtain a free digital certificate
• PDF Signer

If you don’t have time to set the HTML Form Filler up we are ready to help you. Based on HTML Form Filler we may customize this solution to filling out various enrollment forms. This customization will enable you to automate and speed up the process of form filling of any kind.

Requirements:

- .NET Framework 2.0 available here

- Windows XP or later

Product price: FREE

• Download HTML Form Filler (.NET Framework 2.0 available here)

Useful links:

• LDAP X509 Certificate Browser
• X509 Certificate Generator

This tool works with LDIF files exported from Windows 2003 and Windows 2008 Certification Authority using ldifde –f switch (Active Directory). 

LDAP Certificate Browser was optimized to work with more than 5000 X.509 digital certificates. 

Requirements: 

- .NET Framework 2.0 available here 

- Windows XP or later 

Product price: 45 EUR 

• Download LDAP Certificate Browser Demo (.NET Framework 2.0 available here)
• Purchase LDAP Certificate Browser

Useful links: 

• Obtain a free digital certificate
• X509 Certificate Generator
• HTML Form Filler

The Simple Network Time Protocol (SNTP) is a protocol for synchronizing the clocks of computer systems over packet-switched, variable-latency data networks. SNTP uses UDP port 123 as its transport layer. It is designed particularly to resist the effects of variable latency. SNTP uses Marzullo’s algorithm with the UTC time scale, including support for features such as leap seconds. 

This tool may be used to synchronize the clock for TSA Authority. 

Requirements: 

- .NET Framework 2.0 available here 

- Windows XP or later 

Product price: FREE 

• Download Time Synchronizer (requires .NET Framework 2.0 available here)

Useful links: 

• Obtain a free digital certificate
• Certificate Manager
• Time stamping Authority (TSA)

Using P7S Signer you can quickly sign multiple files (any type of files) by selecting input and output directory. This is ideal for bulk signing of large number of corporate files.

Interoperability – The files digitally signed with P7S Signer has the p7s extension and is (mime-type) application/pkcs7-signed-data type. Details about the standard regarding the creation of such structures are published on RFC 3369, standard initiated by RSA Security Data Inc.

PKI Interoperability – P7S Signer is completely PKI neutral and will work with PKI components from any vendor (this includes CAs, certificates, CRLs, smartcards, etc.).

Standard Compliance – P7S Signer signatures are compatible with ETSI TS 101 733 Electronic Signature Formats (CAdES) and PKCS#7 – Cryptographic Message Syntax Standard.

Requirements:

- An X.509 digital certificate (obtain one from here)

- .NET Framework 2.0 available here

- Windows XP or later

Product price: 25 EUR

• Download P7S Signer Demo (requires .NET Framework 2.0 available here)
• Purchase P7S Signer

P7S Viewer

The digitally signed files using P7S or P7M format has the mime-type application/pkcs7-signed-data type. Details about the standard regarding the creation of such structures are published on RFC 3369, standard initiated by RSA Security Data Inc.

P7S Viewer lets you view files signed by P7S Signer or other signature software.

Requirements:

- .NET Framework 2.0 available here

- Windows XP or later

Product price: 15 EUR

Pentru utilizatorii din Romania, acest produs este disponibil gratuit aici

• Download P7S Viewer Demo (requires .NET Framework 2.0 available here)

Price	Buy with PayPal	Buy with credit card
15 EUR

Useful links:

• Obtain a free digital certificate
• File Encryptor
• Timestamping Authority (TSA)

XML Signer allows you to sign XML documents without any need to purchase additional software. This dramatically reduces the Total Cost of Ownership (TCO).

Interoperability – Signatures produced with XML Signer can be verified using standard XML Viewer.

PKI Interoperability – XML Signer is completely PKI neutral and will work with PKI components from any vendor (this includes CAs, certificates, CRLs, smartcards, etc.).

Standard Compliance – XML Signer signatures are compatible with ETSI TS 101 903 XML Advanced Electronic Signatures (XAdES / AdES) and XMLDSig format.

Requirements:

- An X.509 digital certificate (obtain one from here)

- .NET Framework 2.0 available here

- Windows XP or later

Product price: 9 EUR (old price 15 EUR)

• Download XML Signer Demo 3.0 (requires .NET Framework 2.0 available here)

Buy online with PayPal

XML Signer Viewer

XML Signer Viewer lets you view files signed by XML Signer or other signature software.

Requirements:

- .NET Framework 2.0 available here

- Windows XP or later

Product price: FREE

• Download XML Viewer 3.0 (requires .NET Framework 2.0 available here)

Useful links:

• Obtain a free digital certificate
• XML Encryptor
• Timestamping Authority (TSA)

Certificates provide the foundation of a public key infrastructure (PKI). These are electronic credentials, issued by a certification authority (CA), that are associated with a public and private key pair.

In an X.509 version 3 digital certificate, the following important certificate extensions can exist:

Key Usage. A CA, user, computer, network device, or service can have more than one certificate. The Key Usage extension defines the security services for which a certificate can be used. The options can be used in any combination and can include the following:

- Digital Signature. The public key can be used to verify signatures. This key is also used for client authentication and data-origin validation.

- Non-Repudiation. The public key can be used to validate the signer’s identity, preventing a signer from denying that he/she signed a package.

- Data Encipherment. The public key can be used to directly encrypt data, rather than exchanging a symmetric key for data encryption.

Enhanced Key Usage. This extension indicates how a certificate’s public key can be used. The Enhanced Key Usage extension provides additional information beyond the general purposes defined in the Key Usage extension. For example, OIDs exist for Client Authentication (1.3.6.1.5.5.7.3.2), Server Authentication (1.3.6.1.5.5.7.3.1), and Secure E-mail (1.3.6.1.5.5.7.3.4). When a certificate is presented to an application, an application can require the presence of an Enhanced Key Usage OID specific to that application.

Requirements:

- .NET Framework 2.0 available here

- Windows XP or later

Product price: 25 EUR

• Download X509 Certificate Generator Demo (requires .NET Framework 2.0 available here)

Buy online with PayPal

Useful links:

• Obtain a free digital certificate
• Time stamping Authority (TSA)
• Validating digital certificates in Windows
• Adding digital signature on Mozilla Thunderbird emails

PDF Signer Server allows you to sign PDF documents without any need to purchase full Adobe Acrobat license. This dramatically reduces the Total Cost of Ownership (TCO).

Signature Verification – Verify digitial signatures within your PDFs by simply clicking them. The validation results are provided in both summary and detailed manner consistent with Adobe Reader 7.0+.

Configurable Signature Appearance – PDF Signer Server provides a fully configurable appearance for its digital signatures. The positioning of the signature appearance is configurable, plus on which pages of the document it should appear (first page, last page or all pages).

Interoperability – Signatures produced with PDF Signer Server can be verified using standard Adobe Reader 7.0+

PKI Interoperability – PDF Signer Server is completely PKI neutral and it will work with PKI components from any vendor (this includes CAs, certificates, CRLs, smartcards, etc.).

Timestamping – Like signatures, timestamps are easier to verify when they’re associated with a timestamp authority’s trusted certificate. Including a timestamp helps to prove that the document wasn’t changed after you had signed it and it reduces the chances of an invalid signature.

Long-term validation purposes – Using our software you can sign and timestamp PDF documents for long-term validation purposes. PDF Signer Server supports advanced digital signatures which include embedded RFC 3161 compliant secure timestamps. Such signatures can be verified even after the signer’s certificate expires or is revoked.

RSA 2048 – Our software may sign PDF documents using RSA 2048 or higher key length according to ETSI TS 102 176-1 V2.0.0 (“ALGO Paper”).

PAdES standard – PDF Signer Server is fully compatible with PAdES Part 2 (ETSI TS 102778-2).

Invoice signing – PDF Signer Server allows organizations to digitally sign and process large numbers of invoices. EU VAT Directive requires that: “Invoices sent by electronic means shall be accepted by Member States provided that the authenticity of the origin and integrity of the contents are guaranteed”. The only standard and interoperable way of doing this is to use digital signatures and in general EU member states require that a qualified electronic signature is used to confirm the identity of the originator.

Certify your documents - When you certify a PDF, you indicate that you approve of its contents.

Requirements:

- An X.509 digital certificate (obtain one from here)

- .NET Framework 2.0 available here

- Windows XP or later

Product price: 65 EUR (old price 90 EUR - limited offer)

What you will also get if you purchase PDF Signer Server

- An X.509 Personal Digital Certificate with one year validity

- Full access to the time stamping server at no extra cost

• Download PDF Signer Server Demo 4.0 (requires .NET Framework 2.0 available here)
• PDF Signer Server User Manual

Buy online with PayPal

More screenshots:

Useful links:

• Obtain a free digital certificate
• Timestamping Authority (TSA)
• PDFSignDll SDK (for developers)

• Validating digital signatures in Adobe

PDF Signer allows you to sign PDF documents without any need to purchase full Adobe Acrobat license. This dramatically reduces the Total Cost of Ownership (TCO).

Signature Verification – Verify digitial signatures within your PDFs by simply clicking them. The validation results are provided in both summary and detailed manner consistent with Adobe Reader 7.0+.

Configurable Signature Appearance – PDF Signer provides a fully configurable appearance for its digital signatures. The positioning of the signature appearance is configurable, plus on which pages of the document it should appear (first page, last page or all pages).

Interoperability – Signatures produced with PDF Signer can be verified using standard Adobe Reader 7.0+

PKI Interoperability – PDF Signer is completely PKI neutral and will work with PKI components from any vendor (this includes CAs, certificates, CRLs, smartcards, etc.).

Timestamping – Like signatures, timestamps are easier to verify when they’re associated with a timestamp authority’s trusted certificate. Including a timestamp helps to prove that the document wasn’t changed after you had signed it and it reduces the chances of an invalid signature.

Long-term validation purposes – Using our software you can sign and timestamp PDF documents for long-term validation purposes. PDF Signer supports advanced digital signatures which include embedded RFC 3161 compliant secure timestamps. Such signatures can be verified even after the signer’s certificate expires or is revoked.

RSA 2048 – Our software may sign PDF documents using  RSA 2048 or higher key length according to ETSI TS 102 176-1 V2.0.0 (“ALGO Paper”).

PAdES standard – PDF Signer is fully compatible with PAdES Part 2 (ETSI TS 102778-2).

Invoice signing – PDF Signer allows organizations to digitally sign and process large numbers of invoices. EU VAT Directive requires that: “Invoices sent by electronic means shall be accepted by Member States provided that the authenticity of the origin and integrity of the contents are guaranteed”. The only standard and interoperable way of doing this is to use digital signatures and in general EU member states require that a qualified electronic signature is used to confirm the identity of the originator.

Certify your documents - When you certify a PDF, you indicate that you approve of its contents.

Requirements:

- An X.509 digital certificate (obtain one from here)

- .NET Framework 2.0 available here

- Windows XP or later

Product price: 19 EUR (old price 45 EUR)

What you will also get if you purchase PDF Signer

- An X.509 Personal Digital Certificate with one year validity

- Full access to the time stamping server at no extra cost

Buy online with PayPal

Use a different payment method (Credit Card, Bank/Wire Transfer, etc.)

Useful links:

• Online PDF Signer
• PDFSignDll SDK (for developers)
• Obtain a free digital certificate
• Timestamping Authority (TSA)

• Validating digital signatures in Adobe