DocuSeal allows you to create, fill, and sign digital documents. Use for free in the Cloud or on-premises. #1 Open source alternative to DocuSign, Pandadoc etc. Developer-friendly and can be integrated into apps.
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Open Source Adobe Fill & Sign AlternativesE-signature Tools and other similar apps like Adobe Fill & Sign
The best open source alternative to Adobe Fill & Sign is DocuSeal. If that doesn't suit you, our users have ranked more than 100 alternatives to Adobe Fill & Sign and nine of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Adobe Fill & Sign are OpenSign, LibreSign, Documenso and JSignPdf.
Alternatives list
81 OpenSign alternativesOpen-source PDF e-signature solution featuring secure cryptographic signing, detailed audit trails with IP tracking, completion certificates, robust API, multi-device support, privacy-first team collaboration, and seamless document organization via dedicated drive functionality.
Cost / License
- Freemium
- Open Source
Application type
Platforms
- Self-Hosted
- Software as a Service (SaaS)
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LibreSign is a web application for electronic signatures (e-Sign) that offer the possibility of signing documents online with security and agility.
Cost / License
- Freemium
- Open Source (AGPL-3.0)
Application type
Platforms
- Online
- Self-Hosted
- Nextcloud
- JavaScript
- Software as a Service (SaaS)
- PHP
Signing documents digitally should be fast and easy and should be the best practice for every document signed worldwide.
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.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
- LibreOffice
- Apache OpenOffice
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.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
PyPDFForm is a free and open source pure-Python 3 library for PDF form processing. It contains the essential functionalities needed to interact with PDF forms:
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.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
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