PortableSigner

PortableSigner is a free portable software used to digitally sign PDF and Office documents. It allows applying digital signatures without needing to install additional software.

Office & Productivity Document Management

signing pdf office documents digital-signatures portable

PortableSigner alternatives ➤

PortableSigner: Free Portable Software for Digital Signature

PortableSigner is a free portable software used to digitally sign PDF and Office documents. It allows applying digital signatures without needing to install additional software.

What is PortableSigner?

PortableSigner is a handy and easy-to-use portable application designed to help you apply digital signatures to PDF documents as well as Office files, without requiring administrator privileges on the computer.

This utility enables you to digitally sign files using keys and certificates stored on crypto-tokens and smart cards. It's focused on providing signature features, without dealing with other PDF manipulations.

Since it's portable, PortableSigner can be run from removable drives whose contents can't be altered by untrusted hosts. This makes it useful for applying trusted signatures when using public computers.

The intuitive interface allows you to quickly select the file you want to sign, choose the certificate to apply the signature with, set signing reasons and contact info, password-protect the document, timestamp it, and more.

Files signed with PortableSigner are compliant with the most widely adopted signature standards, including PAdES and XAdES, and can be validated using common software like Adobe Acrobat Reader.

Overall, PortableSigner delivers an easy way to digitally sign Office and PDF documents without needing to install additional tools or having admin access.

PortableSigner Features

Features

Portable - can be run from a USB drive without needing to install
Supports digital signatures for PDF and Office documents
Allows applying visible and invisible digital signatures
Supports timestamping signatures
Free and open source

Pricing

Free
Open Source

Pros

Easy to use portable app

Does not require installation

Secure digital signatures

Compatible with PDF and Office docs

Free and open source

Cons

Limited to Windows OS

Basic interface

Lacks advanced features of paid tools

Official Links

Official Website
https://portablesigner.sourceforge.net

The Best PortableSigner Alternatives

Top Office & Productivity and Document Management and other similar apps like PortableSigner

Here are some alternatives to PortableSigner:

Adobe Acrobat DC

Kdan PDF Reader

Nitro PDF Pro

PdfMod

PDFTK Builder

Ashampoo PDF Pro

Suggest an alternative ❐

Adobe Acrobat DC

Adobe Acrobat DC is a suite of applications and services developed by Adobe Systems for working with PDF files, which is a widely used file format for document exchange. Acrobat DC stands for Document Cloud, reflecting Adobe's focus on cloud-based services and collaborative workflows. Key Components and Features: Adobe Acrobat...

Compare Adobe Acrobat DC and PortableSigner

Kdan PDF Reader

Kdan PDF Reader is a capable free PDF reader and editor for Windows, Mac and Linux. The clean intuitive interface supports tabbed viewing, allowing you to open multiple documents in separate tab windows.Annotation tools like highlights, underlines, text boxes and sticky notes facilitate on-screen markups, suitable for document edits and...

Compare Kdan PDF Reader and PortableSigner

Nitro PDF Pro

Nitro PDF Pro is a feature-rich PDF editor and converter application by Nitro Software. As an Adobe Acrobat alternative, it provides advanced tools for creating, editing, converting, signing, securing, and collaborating on PDF documents.With Nitro PDF Pro, users can easily edit text and images in PDFs without needing to convert...

Compare Nitro PDF Pro and PortableSigner

PdfMod

PdfMod is a free, open-source PDF editing tool for Windows, Mac and Linux. It provides a wide range of features for manipulating PDF files including:Merge multiple PDFs into one or split a single PDF into multiple filesAdd, delete, extract, rotate, crop and reorder pagesAdd text, images, shapes and digital signaturesEdit...

Compare PdfMod and PortableSigner

PDFTK Builder

PDFTK Builder is a powerful yet user-friendly PDF manipulation program for Windows. It provides an intuitive graphical interface to carry out various PDF tasks like merge PDFs, split PDFs, add or update metadata, add watermarks, encrypt PDFs, decrypt PDFs, rotate pages, and convert to and from PDF without needing Adobe...

Compare PDFTK Builder and PortableSigner

Ashampoo PDF Pro

Ashampoo PDF Pro is a versatile and full-featured PDF application for Windows. It provides a complete set of tools for working with PDF documents, including:Editing PDFs - Add, edit or delete text and images in PDF files.Creating PDFs - Convert documents, images, and more to high-quality PDF files.Converting PDFs -...

Compare Ashampoo PDF Pro and PortableSigner

Qoppa PDF Studio

Qoppa PDF Studio is a versatile PDF editing and creation application for Windows. It provides a wide range of tools for working with PDF files.With Qoppa PDF Studio, you can make modifications to existing PDFs, such as adding or editing text, images, links, bookmarks, and form fields. It also allows...

Compare Qoppa PDF Studio and PortableSigner

DottedSign

DottedSign is a cloud-based electronic signature and digital transaction management platform that enables organizations to send, sign, and manage documents digitally with legally-binding electronic signatures. Some key features and benefits of DottedSign include:Workflow customization - DottedSign allows users to easily customize document workflows including defining signing order, specifying signer authentication...

Compare DottedSign and PortableSigner

JPdf Tweak

jPdf Tweak is a free, open-source Java application for working with PDF documents. It provides a graphical user interface that makes it easy to manipulate PDFs without needing expertise in PDF format.With jPdf Tweak, you can:Merge multiple PDFs into a single documentSplit one PDF into multiple, smaller documentsRearrange, delete, rotate,...

Compare JPdf Tweak and PortableSigner

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 PDFsTimestamp...

Compare JSignPdf and PortableSigner

PDFZilla

PDFZilla is a powerful, yet user-friendly PDF application that works across Windows, Mac OS X, and Linux operating systems. As a free and open-source alternative to expensive premium PDF software, PDFZilla packs an impressive set of features for virtually all your PDF tasks.For starters, PDFZilla includes reliable tools for viewing...

Compare PDFZilla and PortableSigner

PDF Signet

PDF Signet is a lightweight free tool for digitally signing PDF documents to attest to their validity and confirm the signer's identity. It uses industry-standard public key cryptography to apply digital signatures and timestamps to PDF files.Key features include:Applying PDF signatures that are cryptographically validated to guarantee document integrityTimestamping PDFs...

Compare PDF Signet and PortableSigner