SignPDF – command line PDF signing tool
SignPDF – an iText based command line application to sign PDF documents.
Features:
- Signs a PDF document with a valid Certificate
- Encrypts/Protects a PDF Document
- Timestamps a PDF document (optional feature)
Signed PDF’s are protected against forgery.
A JKS keystore with a signed certificate by your desired CA is mandatory for use. Optionally a time stamping server can be used (tsa_url).
The resulting PDF file will be signed and protected with permission to print, content copying and content copying for accessibility.
By default SingPDF creates a configuration file at ~/.signpdf, which can be edited for futher use.
The picture on the right hand side shows the Acrobat Reader when a signed and protected PDF document is opened.
Sources are available at GitHub: https://github.com/bersch/SignPDF
Some useful links
Trusted Timestamping @ Wikipedia
Keytool/Keystore @ Wikipedia
Timestamping Server at EdelWeb/ON-X
iText @ Wikipedia
Portable Signer
Similar projects
JSignPdf by Josef Cacek
SignPDF by Johan Vromans
isafepdf by alaa.eddine
