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).

1. 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+.

2. 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).

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

4. 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.).

5. 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.

6. 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.

7. 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").

8. 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.

Requirements:
* .NET Framework 2.0
Limitations:
* You cannot change Signing Reason and Signing Location

The license of this software is Free Trial Software, the price is EUR90.00, you can free download and get a free trial.