List of the Top 10 PDF Merge Software for Linux in 2025

Pdftools offers robust solutions for handling vast numbers of documents, potentially reaching into the millions. Tailored for sectors that heavily rely on documentation, the Pdftools suite of SDKs aims to enhance the speed, simplicity, and overall ease of your document workflows, reducing stress along the way. Built on reliable SDKs and APIs, Pdftools products integrate effortlessly into your current systems and applications. With the capacity to process thousands of documents each minute, our tools prioritize speed and efficiency. As engineers committed to excellence, we ensure that only the most trustworthy, usable, and well-documented platforms are utilized. While file sizes can be minimized, we guarantee that quality and interactivity remain intact. Additionally, our solutions help ensure that your documents adhere to long-term archiving standards. Comprehensive documentation accompanies every aspect of our products, allowing for a seamless onboarding experience. With Pdftools, you can transform your document management approach and unlock new efficiencies.

Global OEMs, SaaS providers, and enterprise users utilize the Adobe PDF Library to streamline the processes of creating, editing, and managing PDF documents. As an authorized Adobe partner, our SDK is built using the same source code as Acrobat, ensuring top-notch stability, reliability, and quality. Supported programming languages include .NET, .NET Framework, Java, and C/C++, and it is compatible with platforms such as Windows, Linux, and MacOS, with package management facilitated through NuGet and Maven. The library boasts a wide range of capabilities, encompassing annotations, content creation and modification, color management, and various extraction options for text, images, and forms. It also offers features for compression, optimization, and conversion to formats like PDF/A, PDF/X, EPS, PostScript, XPS, and ZUGFeRD, along with robust display and printing options. Moreover, it allows for the import, export, and flattening of both static and dynamic XFA forms, along with AcroForms, and supports a variety of image operations including extraction, rendering, and thumbnail creation. The optimization functionality enhances file size and content, while OCR capabilities enable text addition to documents and images. Additionally, users can convert PDFs to Office formats such as Word, Excel, and PowerPoint, and implement security measures including viewer settings, redactions, password protection, encryption/decryption, and watermarking. Pricing structures are adaptable for OEMs, SaaS solutions, and end-users, based on their specific usage needs. Accelerate your development process and reach the market more swiftly with the Adobe PDF Library; take advantage of the free trial available for download today.

Experience seamless creation, review, and editing of PDF documents with this comprehensive PDF editor designed for Windows, Mac, and Linux platforms. PDF Studio offers an intuitive interface and serves as a reliable alternative to popular PDF editors like Adobe® Acrobat®, providing all essential PDF functionalities at a more budget-friendly price while ensuring complete adherence to PDF standards. Among its standard features, PDF Studio allows users to create PDFs, convert scanned documents to PDF format, and annotate or markup files with ease. Additionally, it includes precise measuring tools, the ability to fill out and save PDF forms, and options to secure documents through password protection. Users can manipulate pages by appending or deleting them, as well as create custom watermarks, headers, and footers. Advanced tools like loupe, pan & zoom, and rulers enhance the user experience, while integration with document storage solutions and DocuSign adds further convenience. Notably, it also supports PDF 2.0 standards, ensuring compatibility with the latest PDF advancements. For those seeking even more functionality, PDF Studio Pro encompasses all standard features with the addition of advanced tools. Users gain access to an interactive form designer, optical character recognition (OCR) for text recognition, and the ability to edit content, including text and images. Furthermore, the Pro version allows for redaction and sanitization of sensitive information, comparing multiple PDFs, optimizing document size, and digitally signing PDFs. Enhanced imposition features round out this powerful PDF editing suite, making it suitable for professionals in need of robust document management solutions.

With Able2Extract Professional, you can handle various tasks such as converting, creating, editing, and signing PDFs, as well as utilizing OCR capabilities for scanned documents. The software allows for customization of the interface's language and visual style, offering both light and dark themes to enhance your PDF experience. You have the flexibility to select specific elements like pages, paragraphs, or lines for conversion, and can transform intricate PDF table data into Microsoft Excel format while preserving the original table layouts through the Smart Layout Detector feature. Additionally, you can modify PDF text and pages, annotate documents, and remove unwanted content. The program also supports signing PDF files, filling out forms, and creating new PDFs, while offering options to split documents into smaller sections. It enables the conversion of scanned PDFs into multiple languages, including English, French, and Spanish. For those managing large quantities of files, batch PDF conversion can be streamlined by organizing numerous documents into queues or entire folders, allowing for efficient processing. Moreover, you can batch create PDFs from diverse formats and merge them into a single document, while also securing your files by adding passwords and permissions. Able2Extract Professional truly serves as your all-in-one solution for comprehensive PDF management, catering to a wide range of user needs.

SanPDF, created by Sanshangyun Technology Co. Ltd., is a versatile tool that accommodates a variety of document formats such as PDF and e-books. In addition to supporting these formats, it offers the ability to convert between PDF and various office documents. Our mission is to develop intelligent and user-friendly products tailored for Internet users. By focusing on technological advancements and thoughtful design, we strive to design software that enhances both office and personal experiences. Our goal is to simplify and enrich your daily life, making it more enjoyable and efficient. In addition to PDF, SanPDF supports numerous file types, including XPS and DjVu, alongside popular e-book formats like Mobi, CHM, and EPUB. The software is capable of converting PDF files to multiple formats, including Word (.docx), Excel (.xlsx), PPT (.pptx), as well as transforming images into JPEG and BMP formats. With these features, SanPDF not only streamlines document management but also caters to a wide range of user needs.

JPedal simplifies the process of handling PDF files in Java, allowing developers to accomplish common tasks with just a few lines of code. For over two decades, IDRsolutions has been dedicated to enhancing this software, ensuring it can effectively address any challenging PDF issues. It fully supports all PDF 2.0 specifications, incorporating features like Encryption and Blending, Forms and Annotations, as well as PostScript and OpenType fonts. The library is rich with sample code and APIs that seamlessly fit into your applications, enabling feature additions with merely 2-3 lines of code. JPedal utilizes its proprietary font engine and custom image libraries to deliver superior image quality while maximizing performance for Java applications. The development of JPedal is ongoing, with nightly builds and monthly updates ensuring users have access to the latest improvements. Furthermore, the same team that develops the code is also available to provide support, ensuring a cohesive experience for users. This commitment to development and support makes JPedal a reliable choice for Java developers dealing with PDF functionalities.

Synap PDFocus provides a user-friendly platform for converting and merging more than 30 document types into a single PDF without requiring any software installation. This innovative tool significantly improves document management by unifying various formats into one cohesive PDF, making sharing and collaboration much simpler. It easily converts HTML files, MS Office documents, and electronic approval formats into a high-quality PDF, all while ensuring a smooth user experience. Additionally, the technology incorporates safety features to identify and remove potentially harmful code, guaranteeing that the resulting PDFs are secure. The merging process also consolidates electronic approval documents along with their associated files into one PDF, promoting efficient storage solutions. Users are notified via email after conversion, providing a layer of security for attachment validation. Moreover, it allows educational resources in different formats to be compiled into a single PDF, enhancing both accessibility and organization for users. In essence, Synap PDFocus stands out as a versatile and effective tool for anyone looking to streamline document management in today’s digital landscape. With its comprehensive capabilities, it caters to the diverse needs of individuals and organizations alike.

The Apache PDFBox® library is a dynamic open-source solution in Java designed for handling PDF documents effectively. This project not only allows users to create new PDFs but also to modify existing ones and extract various types of content from those files. In addition, Apache PDFBox includes numerous command-line utilities that expand its capabilities even further. Distributed under the Apache License v2.0, the library provides functions for extracting Unicode text from PDFs, splitting a single PDF into several files, and merging multiple PDFs into one cohesive document. Users can also extract data from forms, fill out PDF forms, and ensure that their files meet the PDF/A-1b validation standard. The ability to print PDFs using the standard Java printing API, as well as to create new PDFs that incorporate embedded fonts and images, is also part of its robust feature set. Moreover, users can save PDFs as image files in formats such as PNG or JPEG, which adds to its versatility. The library further allows for the digital signing of PDF documents, thereby enhancing their authenticity and security. Lastly, it is crucial for users to examine the export control information related to the encryption features offered by Apache PDFBox to ensure adherence to applicable regulations, making it a comprehensive tool for PDF management.

With jOfficeConvert, Java applications can seamlessly convert Microsoft Word documents and Excel spreadsheets without requiring any user interaction. This Java library is capable of natively reading and transforming MS Word and Excel files, and it also allows for conversion to image formats or automatic printing of documents. As a fully Java-based solution, it is compatible with any platform that supports Java, including Windows, Linux, Unix, Solaris Sparks, Solaris Intel, and HP-UX. Notably, the library operates independently without relying on third-party software or native calls, making it suitable for use in server settings or as part of desktop applications. Key features include the ability to convert Word documents to PDF formats (.doc, .docx), convert Excel files to PDF when paired with JPDFWeb, merge multiple Word and Excel files into a single PDF document, and apply permissions and passwords to the resulting PDFs for added security. This versatility makes jOfficeConvert an essential tool for developers looking to manage document conversions efficiently.

jPDFOptimizer is a Java-based library designed to streamline and minimize the file size of PDF documents effectively. This tool works by eliminating unnecessary objects, identifying and combining duplicate images and fonts, and adjusting image resolution, compression methods, and color spaces to achieve optimal size reduction. It boasts a straightforward yet robust API that enables developers to customize their document optimization processes precisely. Leveraging Qoppa Software's advanced PDF technology, jPDFOptimizer operates independently of any third-party software or drivers. Being a fully Java-compatible library, it functions seamlessly across various operating systems, including Windows, Linux, and Solaris, as long as a standard Java implementation is available. Key features include the ability to modify image resolution, color space, and compression settings. Additionally, it supports advanced image compression techniques such as JPEG 2000 and JBIG2, as well as data stream compression. The library also efficiently eliminates unused elements, merges duplicate images and fonts, and offers flexible optimization parameters. Furthermore, it includes functionality for linearizing PDFs to enhance web viewing speed while maintaining support for the latest PDF standards and compatibility with JDK 1.6 and later versions. This comprehensive suite makes jPDFOptimizer an invaluable tool for anyone looking to optimize PDF documents effectively.