Compare the Top PDF Annotators for Linux as of April 2025

What are PDF Annotators for Linux?

PDF annotation tools are pieces of software designed to allow users to add notes and highlight text on PDF documents. They can be used by students or professionals to mark up documents, make comments, and organize information in an intuitive way. Annotations may also include drawing shapes or adding images. The annotations can then be saved with the document for easy sharing and future reference. Compare and read user reviews of the best PDF Annotators for Linux currently available using the table below. This list is updated regularly.

  • 1
    Nutrient SDK
    Nutrient is the comprehensive solution for all your PDF needs, offering tools that effortlessly integrate and operate PDF functionality across any platform. 1. SDK PRODUCTS Integrate robust PDF functionality into iOS, Android, Windows, web (JavaScript), or any cross-platform technology, providing capabilities such as PDF viewing, markup, collaboration, and more. 2. LIBRARIES Utilize our potent .NET and Java libraries to boost your backend applications with batch processing of redactions and PDF forms, OCR’d scanned text, and editing of PDF documents, directly from your application server. 3. PROCESSOR Our dynamic PDF microservice, Processor, enables swift generation of PDFs from HTML, including HTML forms, along with Office-to-PDF conversions, OCR, redaction, and XFDF merging and exporting. 4. PDF API Use hosted PDF API to generate, convert, and modify PDF documents in your workflows. We manage the development and server administration, letting you focus on what you do best.
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  • 2
    Adobe PDF Library SDK

    Adobe PDF Library SDK

    Datalogics Inc.

    Shorten development times & get to market faster with Adobe PDF Library. Global OEMs, SaaS and enterprise end-users rely on Adobe PDF Library to automate the creation, editing and management of PDFs. An Adobe partner, our SDK uses the same source code as Acrobat for stability, reliability and quality results. Adobe PDF Library gives developers flexible programming language and platform options, and is currently available in .NET, .NET Framework, Java and C/C++ on Windows, Linux, MacOS, as well as via NuGet and Maven. Our extensive documentation includes getting started guides, API references, and hundreds of sample code examples on GitHub to help developers precisely create and define PDF workflow solutions. Pricing for Adobe PDF Library is based on your business model & software usage. Free trial includes access to our PDF technology experts who can help with proof of concept as well as extend your free trial license if needed. Download and get started today!
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  • 3
    RAD PDF

    RAD PDF

    Red Software

    Add a fully functional PDF editor to your ASP.NET website in minutes! Compatible with 99% of desktop & mobile browsers, from Internet Explorer 6 through the latest iOS Safari release, RAD PDF simply works. No plugins or other software needed. RAD PDF natively supports the most commonly used PDF features. Beyond a PDF reader, RAD PDF equips web applications with a browser-based PDF editor & PDF annotator. Features not even available in Adobe Acrobat Reader can be used to provide advanced PDF functionality. By enabling PDF form filling, PDF redaction, & PDF signing directly in the web browser, RAD PDF users can utilize PDF features without worrying about having the right platform or software installed! Allow your app to design new PDF forms, protect content, sign PDFs, & more using an intuitive graphical user interface (GUI). Client (JavaScript) and server APIs allow for endless possibilities .NET Core, Framework, & .NET 5+ supported Try editing any PDF with RAD PDF, FREE!
    Starting Price: $299 per developer
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  • 4
    Conholdate.Total For .NET
    Conholdate.Total for .NET is the complete package of all .NET APIs as offered by Aspose and GroupDocs. It empowers the developers to perform a wide range of document processing tasks from within their own .NET based applications. This .NET package is an all-in-one solution for all types of document managements systems because it offers the ability to create, edit, print, view, annotate, compare, sign, automate, search and convert between a wide range of popular document formats. Process a Multitude of File Formats - Conholdate.Total for .NET empowers you to build an incredibly versatile file processing system capable of handling many popular file formats. You can easily open, create, modify and convert file formats. Conholdate.Total for .NET currently supports following file types: Microsoft Word documents Microsoft Excel spreadsheets Microsoft PowerPoint presentations Adobe PDF documents Microsoft Outlook Microsoft Project files and more than 100 other file formats
    Starting Price: $4,999
  • 5
    JPedal

    JPedal

    IDR Solutions

    JPedal is a versatile Java PDF Library for displaying, converting, printing, and parsing PDFs in Java applications. With over 20 years of development, it supports a wide range of PDF files. Key features include: -PDF to Image Conversion: Converts PDFs to images in various formats. -Java Swing PDF Viewer: Offers multi-page display, search, printing, and annotation editing. -Text and Image Extraction: High-quality extraction of text and images from PDFs. -PDF Search: Supports searching with wildcards and regular expressions. -Form & Annotation Handling: Supports XFA and AcroForms, enabling form data access and annotation editing. -Document Manipulation: Allows deleting, merging, splitting, and optimizing PDFs. -Security & Performance: Runs locally without third-party dependencies, processing PDFs up to 3x faster than alternatives.
    Starting Price: $950 one time fee
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