Digital Signature Software

Adding PDF Encryption using PDFSignDll SDK

admin — Tue, 09 Feb 2010 10:18:06 +0000

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
PDFEncrypt.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
PDFEncrypt.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.

'set the encryption certificate
PDFEncrypt.SetEncryptionCertificate()

Encryption Algorithms

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

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.

Encrypt a PDF Using Passwords

'owner password is used to set the permissions
PDFEncrypt.OwnerPassword = "owner P@ssw0rD"
'optionally, user password is used to open the document with a password
PDFEncrypt.UserPassword= "user P@ssw0rD"

PDFEncrypt.EncryptPDFFile("c:\\source.pdf", "c:\\encrypt.pdf",
PDFEncryptionType.EnhancedEncryption128BitAES,
PDFEncryptionMethod.Passwords,
PDFDocumentRestrictions.AllowContentCopying Or
PDFDocumentRestrictions.AllowPrinting)

Encrypt a PDF Using Digital Certificates

'set the encryption certificate
PDFEncrypt.SetEncryptionCertificate()

PDFEncrypt.EncryptPDFFile("c:\\source.pdf", "c:\\encrypt.pdf",
PDFEncryptionType.EnhancedEncryption128BitAES,
PDFEncryptionMethod.DigitalCertificates,
PDFDocumentRestrictions.AllowContentCopying Or
PDFDocumentRestrictions.AllowPrinting)

Encryption methods are a free part of PDFSignDll SDK.

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

Help Center

admin — Fri, 05 Feb 2010 09:15:38 +0000

PDF Signer Server

PDF Signer Server User Manual

Time Stamping

PDF Security

Validating digital signatures in Adobe
Using SHA-512 algorithm for digital signatures
Verifying PDF digital signatures using PDFSignDLL SDK (for developers)
Adding PDF encryption 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)

Certification Authority

admin — Mon, 25 Jan 2010 12:11:11 +0000

A Certification Authority issues digital certificates which contain a public key and the identity of the owner. The certificates are issued in PFX (Personal inFormation eXchange) file format protected by a password.

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:

Downloads

admin — Fri, 22 Jan 2010 13:10:16 +0000

Most Popular

Signing Software

Encryption Software

For Developers

PDFSignDll (Sample project: C# - VB.NET - VC++)

Digital Certificates

X.509 Certificate Generator

Other Products

Root certificates

All Products

admin — Thu, 21 Jan 2010 12:15:36 +0000

Signing Software

Encryption Software

For Developers

PDFSignDll Library

Digital Certificates

Time Stamping

Management Tools

PDFSignDll for .NET Framework 2.0 Code Example

admin — Thu, 21 Jan 2010 11:10:27 +0000

C# Code Example

//reset PDF Signature structure - optional
PDFSign.ResetPDFSignatureStructure();

//get the signing certificate from Microsoft Store
PDFSign.SetSigningCertificate(false);

//OR the certificate can be get from a PFX file
PDFSign.SetSigningCertificate("c:\\cert.pfx", "PFX_P@ssw0rD");

//signature position: bottom right
PDFSign.SignaturePosition = SignatureLocation.BottomRight;

//signed by prefix
PDFSign.SignedBy = "Signed by text:";

//date format
PDFSign.DateFormat = "yyyy-MM-dd";

//timestamp the PDF file
PDFSign.TSAServerURL = "http://www.ca-soft.com/request.aspx";

//certify the PDF document
PDFSign.CertifyDocument = CertifyMethod.NoChangesAllowed; 

//digitally sign PDF file
PDFSign.SignPDFFile("c:\\source.pdf", "c:\\source[signed].pdf"); 

Console.WriteLine("Done!");

Visual Basic.NET Code Example

'reset PDF Signature structure - optional
PDFSign.ResetPDFSignatureStructure()

'get the signing certificate from Microsoft Store 
PDFSign.SetSigningCertificate(False)

'OR the certificate can be get from a PFX file
PDFSign.SetSigningCertificate("c:\cert.pfx", "PFX_P@ssw0rD")

'signature position: bottom right
PDFSign.SignaturePosition = SignatureLocation.BottomRight

'signed by prefix
PDFSign.SignedBy = "Signed by text:"

'date format
PDFSign.DateFormat = "yyyy-MM-dd"

'timestamp the PDF file
PDFSign.TSAServerURL = "http://www.ca-soft.com/request.aspx"

'certify the PDF document
PDFSign.CertifyDocument = CertifyMethod.NoChangesAllowed

'digitally sign PDF file
PDFSign.SignPDFFile("c:\source.pdf", "c:\source[signed].pdf")

Console.WriteLine("Done!")

Visual C++ Code Example

//reset PDF Signature structure - optional
PDFSign::ResetPDFSignatureStructure();

//get the signing certificate from Microsoft Store 
PDFSign::SetSigningCertificate(false);

//OR the certificate can be get from a PFX file
PDFSign::SetSigningCertificate("c:\cert.pfx", "PFX_P@ssw0rD");

//signature position: bottom right
PDFSign::SignaturePosition = SignatureLocation::BottomRight;

//signed by prefix
PDFSign::SignedBy = "Signed by text:";

//date format
PDFSign::DateFormat = "yyyy-MM-dd";

//timestamp the PDF file
PDFSign::TSAServerURL = "http://www.ca-soft.com/request.aspx";

//certify the PDF document
PDFSign::CertifyDocument = CertifyMethod.NoChangesAllowed;

//digitally sign PDF file
PDFSign::SignPDFFile("c:\source.pdf", "c:\source.pdf");

Console::WriteLine("Done!");

PDFSignDll for .NET Framework 2.0 SDK

admin — Thu, 21 Jan 2010 10:33:24 +0000

The main function of PDFSignDll SDK is to sign and encrypt PDF documents using X.509 certificates. Using this library you can quickly sign and encrypt PDF files using a fully configurable appearance. 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). Also, the connection to the time stamping server (TSA) can be made using proxy.

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

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 .NET 2003

Operating Systems Compatibility: Windows XP or higher

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

Licensing: You can install PDFSignDll SDK component on as many computers as you wish, and redistribute with your application to as many end-users as you wish. PDFSignDll SDK can be used in any number of applications, and can be redistributed royalty-free with your applications to your end-users.

Single-developer license	65 EUR
Company license	210 EUR

Download PDFSignerDll Demo library (.DLL only)
Download PDFSignDll Sample project: C# – Visual Basic.NET – Visual C++
Code example: C# – Visual Basic.NET – Visual C++

Useful links:

Our Clients

admin — Wed, 20 Jan 2010 14:01:41 +0000

Czech Republic

Ministry of Finance of the Czech Republic

Prague Stock Exchange

I.CA

CCS, Ceska spolecnost pro platebni karty s.r.o.

AVE Soft s.r.o.

STORMWARE s.r.o.

KOOL4 IT Security s.r.o.

TOR Cheb, spol. s.r.o.

American Chance Casinos a.s.

Spain

E2000 Financial Investments

TITANIA, Ensayos y Proyectos Industriales

SOLMICRO ORGANIZACIÓN Y SOFTWARE, S.L.

Ader RR.HH E.T.T S.A.

General Lab S.A.U.

Tecnimunrue S.L.

Portugal

ETNAGA – Consultores

Associação Empresarial de Portugal

WS Atkins Portugal

Segurihigiene – Saude no Trabalho SA

Italy

ASCOT S.R.L.

Protovision S.R.L.

Technomind Spa

Poland

AnySoft.pl Rejestracja Oprogramowania

BIC Prompt

Bulgaria

Gammaconsult GPS

Piccadilly EAD

Israel

Yaad Assimilation & Development

AnyWare E-Commerce LTD.

United States

SHI International Corp.

ProfessionalGeeks

Data Alliance LLC

E-Dictate

QuickImpress LLC

Others

McKey Distribution Pty Limited – Australia

WinBooks SA – Belgium

NTT Europe Online – France

IT Net World Ltd – New Zealand

Vattenfall Nuclear Fuel – Sweden

Venture Finance PLC – United Kingdom

* All trademarks are property of their respective owners.

File Encryption

admin — Mon, 18 Jan 2010 13:37:56 +0000

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 large number of corporate files rather than encrypting each one individually. The encrypted files will be saved with P7M extension.

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:

XML Encryption

admin — Mon, 18 Jan 2010 13:24:13 +0000

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 large number of corporate XML files rather than encrypting each one individually.

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:

PDF Encryption

admin — Mon, 18 Jan 2010 13:14:45 +0000

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.

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: 25 EUR

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

Buy online with PayPal

Useful links:

HTML Form Filler

admin — Mon, 18 Jan 2010 13:03:58 +0000

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

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:

Certificate Manager

admin — Mon, 18 Jan 2010 12:53:56 +0000

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.

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:

Time Synchronizer

admin — Mon, 18 Jan 2010 12:46:50 +0000

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.

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:

P7S Signer

admin — Fri, 15 Jan 2010 12:53:29 +0000

P7S Signer is a standards-based electronic signature solution. Signing electronic documents with P7S Signer will immediately reduce costs, increase security and help organizations comply with regulations. Electronic signatures are based on standard PKI technology, guaranteeing signer authenticity, data integrity and the non-repudiation of electronic documents.

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 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

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

Buy online with PayPal

Useful links:

XML Signer

admin — Fri, 15 Jan 2010 12:16:41 +0000

XML Signer main function is to sign XML documents (see: XML Digital Signature) using X.509 digital certificates. Using this product you can quickly sign multiple XML files (bulk sign) by selecting input and output directory. This is ideal for batch signing of large number of corporate XML documents rather than signing each one individually.

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: 25 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:

X.509 Certificate Generator

admin — Fri, 15 Jan 2010 11:41:40 +0000

The X.509 Certificate Generator is a multi purpose certificate utility. It can be used to generate X.509 certificates, export certificates in PFX format, preview certificates or change key usage extensions.

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:

XPS Signer

admin — Wed, 13 Jan 2010 16:38:50 +0000

XPS Signer main function is to sign XPS documents (see: XML Paper Specification) using X.509 digital certificates. Using this product you can quickly sign multiple XPS 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.

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

Configurable Signature Behaviour – XPS Signer provides a fully configurable behaviour for its digital signatures.

Interoperability - Signatures produced with XPS Signer can be verified using standard XPS Viewers.

PKI Interoperability – XPS 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 2.0 available here

- Windows XP or later

Product price: 25 EUR

Download XPS Signer Demo 2.5 (requires .NET Framework 3.5 available here)

Buy online with PayPal

Useful links:

PDF Signer Server

admin — Wed, 13 Jan 2010 15:42:59 +0000

The main function of PDF Signer Server is to sign PDF documents using X.509 digital certificates. Using this product you can quickly sign multiple PDF files (bulk sign) by selecting input and output directory. This is ideal for bulk signing of large number of corporate documents rather than signing each one individually.

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.

SHA-2 hash function – Our software may sign PDF documents using SHA-256, SHA-512 hash algorithm and RSA 2048 or higher key length according to ETSI TS 102 176-1 V2.0.0 (“ALGO Paper”).

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:

PDF Signer

admin — Mon, 11 Jan 2010 13:27:19 +0000

The main function of PDF Signer is to sign PDF documents using X.509 digital certificates. Using this product you can quickly sign multiple PDF files (bulk sign) by selecting input and output directory. This is ideal for bulk signing of a large number of corporate documents rather than signing each one individually.

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).

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.).

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.

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: 25 EUR (old price 45 EUR - limited offer)

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

Download PDF Signer Demo 5.5 (requires .NET Framework 2.0 available here)

Buy online with PayPal

Useful links: