Sometimes you want to automate signing PDF files with a PKCS12 certificate. Here you have a command line options Github
It is useful for example in Batch processes, from non Java programming languages like Php, Shell scripts, etc...
BatchPDFSign is a command line to sign PDF file with a PKCS12 certificate. You need a PKCS12 certificate. It should be a .pfx file. You need a password for the .pfx A PDF file to sign.
You can create your own self signed certificate with this following 4 commands in ubuntu. Release includes this certificate with password <12345>.
openssl genrsa -aes128 -out myself.key 2048
openssl req -new -days 365 -key myself.key -out myself.csr
openssl x509 -in myself.csr -out myself.crt -req -signkey myself.key -days 365
openssl pkcs12 -export -out myself.pfx -inkey myself.key -in myself.crt
Then you can sign a PDF file with following command line.
java -jar BatchPDFSign.jar <certificate.pfx> <password> <filetosign.pdf>
With a specific output file.
java -jar BatchPDFSign.jar <certificate.pfx> <password> <filetosign.pdf> <outputfile.pdf>
For the example included in the releases.
java -jar BatchPDFSign.jar myself.pfx 12345 test.pdf
With an output file defined.
java -jar BatchPDFSign.jar myself.pfx 12345 test.pdf test-sig.pdf
That's all folks.
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