Free open-source web software for signing (alone or with others), organizing (merge, sort, rotate, delete, extract pages, ...), editing metadatas or compressing PDFs.




Free open-source web software for signing (alone or with others), organizing (merge, sort, rotate, delete, extract pages, ...), editing metadatas or compressing PDFs.




Free, open-source desktop app for legally binding PDF digital signatures. Sign with PKCS#11 hardware tokens, USB dongles, smart cards, PFX certificates, or Windows keystore. Adobe-compatible, RFC 3161 timestamped, fully offline — no cloud, no subscription.




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.


Simplify your business using eSignatures. Send your documents and get them signed in seconds!


The Apache PDFBox™ library is an open source Java tool for working with PDF documents. This project allows creation of new PDF documents, manipulation of existing documents and the ability to extract content from documents.
GoSigner is an intuitive and easy free electronic signature app that allows users to send eSign Documents, Sign PDF documents online.




Sign PDF lets you easily create and insert your signature image to a PDF file, also lets you fill out PDF form by adding text, images and checkmarks.



