Alternatives to AutoFirma

Digital signature and time stamp app, International Edition

Application for electronic signing of signatures

X Certificate and Key management

Configurable document editor that supports Markdown

Provides updates to various Microsoft products

Shows a files cryptographic signing information

Digitally sign PDFs with the Austrian Buergerkarte or ID Austria

Application for electronic signing and validation of signatures

Multi-document editor by KDE

Open-source design editor compatible with Figma

IDE for TLA+

PDF editor