eParapher requires JRE 1.5 minimum, which is now usually bundled with you operating system.
Verify here your java version, and download Sun's JRE if necessary.
IBM Linux JRE is not yet supported, due to special PKCS11 JCE.
If you want eParapher to convert your Microsoft Office (word, excel, power point) and/or Open office documents, please download and install Open office.
If you can't install applications due to rights restrictions, you can use a portable version.
To generate digital signatures, you need to generate a private key, protected by a secret, and it's relative X509 certificate.\
At the first start, eParapher will suggest to create your own certificate.
If you already have a keystore with X509 certificates issued by a PKI,
then select it in the Edit -> Preferences -> eParapher -> keystore settings
The main concepts around digital certificates :
To configure open office directory in eParapher preferences :
Then you are ready to use Open office runtime to generate PDF/A signed documents, ready for archiving.