PDF visual signatures without overlapping

Java PDF signature validator

Test area for public SD-DSS v4.7.x issues on stackoverflow etc

pdftimestamp add a document timestamp signature for a PDF file.

Websocket based (NO APPLET) Smart Card Digital Signature Framework

Digital Signature Service (DSS) library port for android

Utility class to sign pdf files width PAdES (PDF Advanced Electronic Signature) digital signature.

Java command line tool for digital signature with PKCS#11 token.

Chrome extension for digital signature with PKCS#11 token.

Digital Signature Service : creation, extension and validation of advanced electronic signatures

iText for Java represents the next level of SDKs for developers that want to take advantage of the benefits PDF can bring. Equipped with a better document engine, high and low-level programming capabilities and the ability to create, edit and enhance PDF documents, iText can be a boon to nearly every workflow.