Compare the Top PDF Software as of November 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.

  • 1
    Kenesto

    Kenesto

    Kenesto Corporation

    Kenesto is a cloud-based storage solution for managing engineering, design, and construction documents. Kenesto is much less expensive than enterprise PDM solutions but provides automatic file locking, versioning, vaulting, 2D/3D viewing, and web-based design review tools not found in consumer-grade cloud storage solutions such as Dropbox and Google Drive. The solution behaves like a mounted disk in the customer's office but the with a single source of truth in the cloud. File locking prevents users from overwriting each other's data. All versions of all files are stored in perpetuity. Using the familiar user interface of Windows Explorer, files and folders are arranged in the same way as one would expect for a C Drive. Kenesto includes tasks and workflows. A plugin for SolidWorks is available for no charge. All file transfers from the user’s local computer to the cloud are encrypted. All files are stored in secure AWS S3 and are encrypted.
    Starting Price: $27/user/month (single user)
  • 2
    Drawboard Projects
    Collaborative design review software with all markups, live synced, tracked and coordinated. Your team's new live and intuitive workspace for drawing and document review. Drawboard Projects (formerly Bullclip) is the only collaborative workspace where you and your team can mark up, discuss and track changes across PDF drawings and documents. Refined by architects and engineers, made for any team. - In Drawboard Projects, all internal contributors and those with limited-access guests mark up the same drawings or documents. - Drawboard Projects instantly syncs all markups and communication on every revision, speeding up your process and giving you your coordination time back. - Pin issues to particular places on drawings and assign responsibility for closeout to team members. - Keep discussion right on the drawing so that anyone can see full context of decisions that were made. -Organization management with an easy-to-use Admin Portal for better governance.
    Starting Price: $19 per user per month
  • 3
    PDF Conversion SDK

    PDF Conversion SDK

    Visual Integrity Technologies

    Add PDF Features with 2 API Calls Open, Edit, and View PDF. All that's needed is two API calls and a configuration file. Within a day, you can add, open, import, edit and view PDF features in your app. When formats don't match one-to-one, the SDK neutralizes the differences. This includes adding cropping, fills, color management and fonts. The PDF Conversion SDK processes all PDF versions including ISO Standard PDF 2.0. Any PDF from file or print-ready memory is valid input. Conversions flow straight through without intermediate steps or compromised quality. No printer driver. The PDF Conversion SDK runs on Windows, MacOS and Linux. It supports .NET. Example code included. Removes redundant information & compresses data. This ensures great performance for fast web and application viewing. Search for objects and text strings. Convert PDF to your native file format. Change the contents of a PDF page. Extract images from PDF. Retrieve metadata from PDF (layers, geospecification, etc).
    Starting Price: $199 per year
  • 4
    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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