Compare the Top PDF Software as of October 2025

What is PDF Software?

PDF software refers to a range of tools designed for working with PDF (Portable Document Format) files, which are widely used for document sharing and storage. These tools offer a variety of functions, such as creating, viewing, editing, converting, securing, and managing PDF files. PDF software can be used for tasks like merging or splitting documents, adding annotations, filling out forms, applying digital signatures, and securing documents with passwords or encryption. It is commonly utilized across industries for document collaboration, official documentation, and data exchange due to its universal compatibility and ability to maintain formatting across different platforms. Compare and read user reviews of the best PDF software currently available using the table below. This list is updated regularly.

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    DocShifter

    DocShifter

    DocShifter

    Enterprises work with a lot of digital documents, in multiple file formats. And these documents need to be converted for sharing & collaboration, standardization or archiving. Or simply because today’s systems have difficulties working with older formats. Converting between formats happens manually, which is inefficient, slow, inconsistent and expensive. Different tools are used to convert documents throughout the organisation. On top of that, in sectors like life sciences and finance, specific regulatory document requirements must be met. DocShifter, an automated file format conversion platform, solves these challenges. The software automatically recognizes documents and emails and converts them to the output format of your choice. In PDF or any other standardized format. Lightning fast. To the specifications required by your organisation or the regulators in your industry. Once converted, these documents can be further shared internally & externally, archived as PDF/A.
  • 2
    Doc.It by IRIS

    Doc.It by IRIS

    Doc.It Inc.

    Document Management, Workflow, PDF Editing and Web Portal solutions for accounting firms to improve productivity and efficiency. Accounting and tax firms using Doc.It Suite software stay organized by streamlining and automating digital processes that drive efficiency, workflows and profitability while minimizing risk associated with dealing with the exchange and storage of financial documents. Doc.It was founded in 2001, is headquartered in Toronto, Canada and currently has 600 accounting firms and 16,000 users. There are three product options depending on your firms needs. 1. Doc.It Suite includes all functions of the software- Scan and Organize, document management, workflow, web portal, PDF Editor and all integrations. 2.. Doc.It Connect is focused around the web portal functionalities with the work binders for document storage. 3. Doc.It Explore is the starting point for document storage. and includes the PDF editor
    Starting Price: $29.00/month/user
  • 3
    SCHEMA ST4

    SCHEMA ST4

    SCHEMA Group

    The SCHEMA Group was established in Nuremberg in 1995 and is a medium-sized software manufacturer with more than 130 employees. The SCHEMA Group produces component content management and content delivery solutions for authoring departments creating product-related content. The SCHEMA ST4 component content management system is one of the most frequently used systems for the modularised creation of documentation, package inserts and marketing documentation. The system covers all areas of creation, versioning, variant control, translation, management and publication of product-related content – from authoring assistance during input to the finished layout for the printed catalog. A documentation portal based on Quanos InfoCube provides a central point of contact on the Internet where all technical documentation is available. Users can quickly and precisely find the right content in the entire information inventory with an easy-to-use search system.
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