PDF Signer Alternatives for Linux
Writer has all the features you need from a modern, full-featured word processing or desktop publishing tool.
- - LibreOffice - Writer is the most popular Windows, Mac & Linux alternative to PDF Signer.
- - LibreOffice - Writer is the most popular Open Source & free alternative to PDF Signer.
LibreOffice - Writer Features
Free (and open source) editor for manipulating PDF documents. GUI version + commandline interface. Scripting is used to a great extent in editor and almost anything can be scripted, it is possible to create own scripts or plugins.Discontinued
The project is no longer developed. Last version, 20140526_1531, released in May 2014, can be still downloaded from SourceForge.
JSignPdf is a Java application which adds digital signatures to PDF documents. It can be used as a standalone application or as an Add-On in OpenOffice.org. The application uses the jsignpdf-itxt library for PDF manipulations (based on iText library in version 2.1.
PortableSigner is a signing (with X.509 certificates) program for PDF files. It's platform independent and runs (tested) under Windows (2000, XP, ...), Linux, and macOS.
OpenSignature is an open source project for the digital signature of documents. It works with all cards supported by OpenSC and focuses on adding support for cards from accredited Italian CAs.