JSignPdf
JSignPdf is an open source Java library that allows developers to digitally sign PDF documents programmatically. It supports features like visible and invisible signatures, time stamping, multiple signatures, and more.
pdf
digital-signature
encryption
java
JSignPdf: Open Source Java Library for Digital Signing of PDF Documents
JSignPdf allows developers to digitally sign PDF documents programmatically with features like visible/invisible signatures, time stamping, and multiple signatures.
What is JSignPdf?
JSignPdf is an open source Java library that allows developers to digitally sign PDF documents programmatically. It provides an API and components that can be easily integrated into Java applications to add advanced PDF signing capabilities.
Some of the key features of JSignPdf include:
- Apply visible and invisible digital signatures to PDFs
- Timestamp signatures
- Sign multiple times with different signatures
- Support for different signature formats like CADES, PADES, XADES
- Graphical signature image customization
- PDF certificate validation
- PDF pre-signing and post-signing verification
JSignPdf handles all the complex PDF signing steps like pre-processing PDFs, computing signature hashes, embedding signature widgets, and finalizing PDFs after signing. It can be used in various use cases like e-invoicing, document and contract signing, automated paperwork, and more.
As it is open source, JSignPdf is free to use and customizable. It is written in Java and thus integrates well into JVM-based applications. Overall, it provides a full-fledged PDF digital signature solution for Java developers to efficiently sign PDFs.
JSignPdf Features
Features
- Digitally sign PDF documents
- Supports visible and invisible signatures
- Time stamping of signatures
- Apply multiple signatures to a PDF
- Validate existing digital signatures
- Free and open source
Pricing
- Open Source
- Free
Pros
Easy to integrate into Java applications
Good documentation and examples
Active development and support
Does not require paid libraries like iText
Can be used for free
Cons
Limited to Java ecosystem
Not as full-featured as paid solutions like Adobe Acrobat
Lacks graphical user interface
Official Links
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