This program first creates a pdf file, then signs that file, then verifies the signature.

/*

• Note that the jks store I used before has a certificate which has expired, so I regenerate the certificate in jks, THEN I convert the jks file to pfx

• Unfortunately, jks store previously used by Itext library for Java implementation is not really recognized in .NET implementation,

• so we need to convert it to pfx as follows:

• C:\Program Files\Java\jdk1.8.0_121\bin>keytool -importkeystore -srckeystore "C:\Users\Baran.Topal\Desktop\BaranTopalCVSigner\BaranTopalCVSigner\BaranTopalCVSigner\keystore2.jks" -srcstoretype JKS -srcstorepass barantopal -destkeystore "C:\Users\Baran.Topal\Desktop\BaranTopalCVSigner\BaranTopalCVSigner\BaranTopalCVSigner\keystore2.pfx" -deststoretype PKCS12 -deststorepass barantopal

• Entry for alias another_selfsigned successfully imported.

• Import command completed: 1 entries successfully imported, 0 entries failed or cancelled

• We sign with our private key and verification is done by our public key (the certificate). We need to generate a .der file for this need as follows:

• PS C:\Users\Baran.Topal\Desktop\BaranTopalCVSigner\BaranTopalCVSigner\BaranTopalCVSigner> Get-PfxCertificate -FilePath keystore2.pfx |

• Export-Certificate -FilePath OutputCert.der -Type CERT

• Enter password:

• Directory: C:\Users\Baran.Topal\Desktop\BaranTopalCVSigner\BaranTopalCVSigner\BaranTopalCVSigner

Mode LastWriteTime Length Name

-a---- 2017-07-07 16:03 928 OutputCert.der

*/