Free and open source desktop application to split, merge, extract pages, rotate and mix PDF files.
Italy
EU
+5
The Best Open Source Nitro PDF AlternativesTop PDF Editors & E-signature Tools like Nitro PDF
The best open source alternative to Nitro PDF is PDFsam. If that doesn't suit you, our users have ranked more than 100 alternatives to Nitro PDF and 18 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Nitro PDF are PaperKnife, Skim, PDF4QT and PDFedit.
filter to find the best alternatives
Nitro PDF alternatives are mainly PDF Editors, but if you're looking for PDF Readers or PDF Printers you can filter on that. Other popular filters include Linux, Open Source, Windows + Free, Mac, Android and Free. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Nitro PDF .
Alternatives list
- 149 PDFsam alternatives
55 PaperKnife alternativesPrivacy-first PDF utility (Zero-Server Architecture). Merge, split, compress, and edit PDFs 100% locally on your device. No uploads, no servers, no tracking.
98 Skim alternativesPDF viewer for macOS supports scientific papers, annotations, highlights, bookmarks, split view, exporting notes, AppleScript, multiple annotation types, bibliography integration, full-screen, search, and compatibility with various macOS versions.
112 PDF4QT alternativesOpen-source PDF viewer and editor using Qt framework, featuring hardware-accelerated rendering, encryption, multithreading, text-to-speech, annotation tools, form filling, high-res monitor support, document compression, audio book conversion, and signature validation.
Free (and open source) editor for manipulating PDF documents. GUI version + commandline interface. Scripting is used to a great extent in editor and almost anything can be scripted, it is possible to create own scripts or plugins.
Cost / License
- Free
- Open Source
Application type
Alerts
- Discontinued
Platforms
- Windows
- Linux
- Flathub
- Flatpak
153 LibreSign alternativesLibreSign is a web application for electronic signatures (e-Sign) that offer the possibility of signing documents online with security and agility.
Cost / License
- Freemium
- Open Source (AGPL-3.0)
Application type
Platforms
- Online
- Self-Hosted
- Nextcloud
- JavaScript
- Software as a Service (SaaS)
- PHP
A feature-rich, privacy-focused PDF app built with Jetpack Compose and Material 3. View, edit, and manage PDFs with 12 powerful tools including merge, split, compress, rotate, lock/unlock, and more. Supports bookmarks, table of contents, full-text search, and auto-scroll for...
Cost / License
- Free
- Open Source (GPL-3.0)
Platforms
- Android
+9
Privacy-first, offline PDF editor for Android. Merge, split, compress, convert and annotate PDFs — 100% on-device, no internet required.
+3
CubePDF Utility allows you to intuitively perform editing tasks such as merging, extracting, splitting, deleting, reordering, and rotating PDF pages via thumbnails.
Converts PDF files into Word, Excel, PowerPoint, HTML, ePub, and diverse image formats using advanced OCR technology, ensures accurate preservation of layout and structure, supports batch and partial page conversions, and handles multilingual and scanned documents.
Cost / License
- Paid
- Open Source
Platforms
- Mac
- Windows
101 PoDoFoBrowser alternativesPoDoFoBrowser is a graphical browser and editor for the object structure of PDF files.
Cost / License
- Free
- Open Source (MPL-2.0)
Platforms
- Windows
- Linux
- BSD
CubePDF Page is a Windows software that allows you to easily merge and split PDF files. It is very simple to use, just Drag&Drop PDF files and click the Merge or Split button. In addition to PDF files, images can also be merged as PDF pages.
Cost / License
- Free
- Open Source
Platforms
- Windows
Czechia
Bangladesh
India
Japan
Hong Kong SAR China
Not a complete PDF editing suite like Nitro PDF