Best Open Source PDF Merge Tools 2026

PDF Merge Tools

PDF Merge Windows English Mac Clear Filters

Browse free open source PDF Merge tools and projects for Windows and Mac below. Use the toggles on the left to filter open source PDF Merge tools by OS, license, language, programming language, and project status.

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1

PDF Split and Merge

Split and merge PDF files on any platform

Split and merge PDF files with PDFsam, an easy-to-use desktop tool with graphical, command line and web interface.

Downloads: 196 This Week

Last Update: 2026-03-02
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2

pdf combiner merger converter splitter

PDF Combiner is a user-friendly, GUI-based tool built in

PDF Combiner is a user-friendly open source free to use, GUI-based tool for combining, pdf to excel, pdf to word, image to pdf, zip, unzip annotate and splitting PDF files. It is easy to use, supports multiple file insert and delete and process, and allows you to adjust the order of files before combining.

1 Review

Downloads: 2 This Week

Last Update: 2024-05-03
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3

BRIC

BRIC is a powerful tool for batch image processing.

Bric is a cross-platform batch image processor. You can convert, resize, rotate and add watermark to your images. Multiple file types are supported for input and output. The project started back in 2011 and was maintained for a couple of years. In 2020 BRIC is again in active development, so some of the features written below might be outdated. Please be patient, until everything is reviewed and rewritten.

2 Reviews

Downloads: 0 This Week

Last Update: 2020-07-28
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4

Mergist

Mergist is an online tool to combine multiple PDF files into one

Mergist is an online tool to combine multiple PDF files into one. Mergist has no ads, no file size limits, and your files never leave your device.

Downloads: 0 This Week

Last Update: 2025-12-13
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MongoDB Atlas runs apps anywhere
Deploy in 115+ regions with the modern database for every enterprise.

MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.

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5

JPDF Tools

JPDF Tools is a GUI java program built on the JPDF Export library. Its main aim is to create pdf files by inserting texts, images or tables. Users can also merge PDF files, split PDF files, merge images into PDF files and soon convert from and to PDF files.

1 Review

Downloads: 1 This Week

Last Update: 2016-02-15
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