The Best Open Source Nitro PDF AlternativesTop PDF Editors & PDF Readers 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 15 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Nitro PDF are PDF4QT, PDFedit, LibreSign and Skim.

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, Free, Open Source, Windows + Free, Android and Mac. 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 .
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Alternatives list

  1. PDFsam icon

    PDFsam

     223 likes
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    Free and open source desktop application to split, merge, extract pages, rotate and mix PDF files.

    144 PDFsam alternatives

    Cost / License

    • Freemium (Pay once)
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    PDFsam screenshot 1
     
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    3
    24
    Comments about PDFsam as an Alternative to Nitro PDF
    Cristiano Canguçu
    Positive
    0

    Not a complete PDF editing suite like Nitro PDF

    Guest
    Negative
    0

    It lacks a lot of functionalities and is definitely not as user friendly.

    Review by a new / low-activity user.
    Guest
    Negative
    -3

    it doesn't work at all, seems useless app.

    Review by a new / low-activity user.
    Nitro PDF Icon
    PDFsam icon

    • Some users think PDFsam is a great Nitro PDF alternative, some don't.

    • PDFsam is the most popular Mac & Linux alternative to Nitro PDF .

    • PDFsam is the most popular Open Source alternative to Nitro PDF .

    • PDFsam is Freemium and Open SourceNitro PDF is Paid and Proprietary
    • PDFsam is LightweightNitro PDF is not according to our users
  2. PDF4QT icon

    PDF4QT

     8 likes
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    Open-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.

    97 PDF4QT alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Windows
    • Linux
    • Flathub
    PDF4QT screenshot 1
     
  4. PDFedit icon

    PDFedit

     24 likes
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    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.

    92 PDFedit alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Linux
    • Flathub
    • Flatpak
    PDFedit screenshot 1
     
  5. Ad
    Screenshot
    Aiseesoft PDF Converter Ultimate icon
    Aiseesoft PDF Converter Ultimate

    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...

    https://www.aiseesoft.com
    Learn More
  6. LibreSign icon

    LibreSign

     11 likes
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    LibreSign is a web application for electronic signatures (e-Sign) that offer the possibility of signing documents online with security and agility.

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application type

    Platforms

    • Online
    • Self-Hosted
    • Nextcloud
    • JavaScript
    • Software as a Service (SaaS)
    • PHP
    LibreSign screenshot 1
     

    • LibreSign is the most popular Self-Hosted alternative to Nitro PDF .

    • LibreSign is Freemium and Open SourceNitro PDF is Paid and Proprietary
    • LibreSign is Privacy focusedNitro PDF is not according to our users
  7. Skim icon

    Skim

     92 likes
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    PDF 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.

    85 Skim alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    The PDF Window
     
  8. CubePDF Utility icon

    CubePDF Utility

     3 likes
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    CubePDF Utility allows you to intuitively perform editing tasks such as merging, extracting, splitting, deleting, reordering, and rotating PDF pages via thumbnails.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Windows
    CubePDF Utility screenshot 1
     
  10. Aiseesoft PDF Converter Ultimate icon

    Aiseesoft PDF Converter Ultimate

     2 likes
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    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

    • Pay once or Subscription
    • Open Source

    Platforms

    • Mac
    • Windows
    Aiseesoft PDF Converter Ultimate screenshot 1
     
  11. PdfMod icon

    PdfMod

     27 likes
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    PDF Mod is a simple application for modifying PDF documents.

    85 PdfMod alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Linux
    • BSD
    PdfMod screenshot 1
     
  13. CubePDF Page icon

    CubePDF Page

     Like
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    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
    CubePDF Page screenshot 1
     
  14. qvPDF icon

    qvPDF

     19 likes
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    qvPDF is a PDF creator for Windows, but you can also merge & split. Its implemented as printer driver and uses plugins to execute different actions after creating the PDF. Processing parameters can be written directly into the printed document like: @|mapi.mailto=me@you.

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Windows
    qvPDF screenshot 1
     
  15. FormulatePro icon

    FormulatePro

     3 likes
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    FormulatePro helps you open and write on PDF documents. You can fill out any PDF form document, drop in graphics, scribble with the mouse or a tablet, save and print.

    Cost / License

    • Free
    • Open Source

    Application types

    Alerts

    • Discontinued

    Platforms

    • Mac
    FormulatePro screenshot 1
     
12 of 15 Nitro PDF alternatives