Nitro PDF AlternativesOnly Free apps categorised as E-signature Tools

The best free E-signature alternative to Nitro PDF is DottedSign. If that doesn't suit you, our users have ranked more than 100 alternatives to Nitro PDF and six of them are free E-signature Tools so hopefully you can find a suitable replacement. Other interesting free E-signature Tool alternatives to Nitro PDF are KDAN PDF Reader, LibreSign, Adobe Fill & Sign and PDFWrench.

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Nitro PDF alternatives are mainly E-signature Tools but may also be PDF Readers or PDF Editors.  Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Nitro PDF .
Nitro PDF iconNitro PDF
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  • ...

Edit, create, convert PDFs with OCR, e-signature, annotation, on Mac, Windows, iOS. Offers industry-standard security and intuitive interface.

More about Nitro PDF
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Nitro PDF alternatives page was last updated Feb 21, 2025
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  1. DottedSign icon
    DottedSign icon

    DottedSign

     167 likes
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    DottedSign is the most comprehensive and easy-to-adopt e-signature solution, offering businesses enterprise-level security standards, equipping them for mobile-first hybrid work environment.

    106 DottedSign alternatives
    Future-proof Your Business with E-Signature.

    License model

    • Freemium • Proprietary

    Application type

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    DottedSign screenshot 1
    DottedSign screenshot 2
    +3
    DottedSign screenshot 3

    DottedSign Features

    1.  Fill PDF Forms
    2.  Email automation
    3.  Signing PDF Documents
    4.  Sign PDF files
    5.  Reminders
    6.  PDF OCR
    7.  Custom data fields
    8.  Periodic Reminders
    9.  Mobile friendly
    DottedSign iconNitro PDF Icon

    DottedSign VS Nitro PDF

    Is DottedSign a good alternative to Nitro PDF ?
     

    • Almost everyone thinks DottedSign is a great Nitro PDF alternative.

    • DottedSign is the most popular Web-based, Android, iPhone & iPad alternative to Nitro PDF .

    • DottedSign is the most popular free alternative to Nitro PDF .

    • DottedSign is Freemium and ProprietaryNitro PDF is Paid and Proprietary
  2. KDAN PDF Reader icon
    KDAN PDF Reader icon

    KDAN PDF Reader

     183 likes
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    KDAN PDF Reader is tailored for a hybrid workplace, providing AI-driven PDF document services to enhance efficiency in cross-device document management and enable seamless workflows across mobile and desktop platforms.

    242 KDAN PDF Reader alternatives
    Your All-in-One PDF Editor

    License model

    • Freemium • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Edit texts, images, and links on PDFs
    Summarize, analyze, and extract information with AI
    +7
    Convert PDFs to different formats, online or offline

    Properties

    1.  Privacy focused

    Features

    1.  Scan documents
    2.  Freehand Writing
    3.  Sign PDF files
    4.  Multiple languages
    5.  PDF compression
    6.  Combine PDF
    7.  Full-Text Search
    8.  Split PDF files
    9.  Built-in viewer
    10.  Dark Mode
    11.  Text to Speech
    12.  Works Offline
    KDAN PDF Reader iconNitro PDF Icon

    KDAN PDF Reader VS Nitro PDF

    Is KDAN PDF Reader a good alternative to Nitro PDF ?
     
  4. LibreSign icon
    LibreSign icon

    LibreSign

     10 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.

    124 LibreSign alternatives
    LibreSign screenshot 1

    License model

    • Freemium • Open Source

    Application type

    Platforms

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

    Properties

    1.  Privacy focused

    Features

    1.  E-signature
    2.  Sign PDF files
    3. Nextcloud icon  Nextcloud integration
    4.  REST API
    5.  Digital Signage
    6.  No Tracking
    7.  Ad-free
    LibreSign iconNitro PDF Icon

    LibreSign VS Nitro PDF

    Is LibreSign a good alternative to Nitro PDF ?
     

    • LibreSign is the most popular SaaS & 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
  5. Ad
    Screenshot
    Adobe Fill & Sign icon

    Adobe Fill & Sign

    Adobe software for filling and signing forms digitally covers it all. Snap paper forms with a phone's camera, add details, sign with a stylus or finger, and then send via email. It’s all about speed, ease, and going green wit...

    https://acrobat.adobe.com
    Learn More
  6. Adobe Fill & Sign icon
    Adobe Fill & Sign icon

    Adobe Fill & Sign

     13 likes
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    Adobe software for filling and signing forms digitally covers it all. Snap paper forms with a phone's camera, add details, sign with a stylus or finger, and then send via email. It’s all about speed, ease, and going green with paperless workflows.

    96 Adobe Fill & Sign alternatives
    Adobe Fill & Sign screenshot 1
    Adobe Fill & Sign screenshot 2
    +1
    Adobe Fill & Sign screenshot 3

    License model

    • Free • Proprietary

    Application type

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad

    Adobe Fill & Sign Features

    1.  Sign PDF files
    2.  Autofill
    Adobe Fill & Sign iconNitro PDF Icon

    Adobe Fill & Sign VS Nitro PDF

    Is Adobe Fill & Sign a good alternative to Nitro PDF ?
     
  7. PDFWrench icon
    PDFWrench icon

    PDFWrench

     3 likes
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    Free Digital Signature Software that works without any file upload to ensure privacy and security

    Combine, merge and reorganize pages of multiple PDF pages and images into one PDF document without any file upload.

    111 PDFWrench alternatives
    PDFWrench screenshot 1

    License model

    • Free Personal • Proprietary

    Application types

    Platforms

    • Online
    • Self-Hosted
    • Software as a Service (SaaS)

    PDFWrench Features

    1.  Split PDF files
    2.  Sign PDF files
    3.  Combine PDF
    4.  PDF Page Merge
    5.  Split and merge PDF files
    6.  Remove pages from PDF
    7.  Digital Signage
    PDFWrench iconNitro PDF Icon

    PDFWrench VS Nitro PDF

    Is PDFWrench a good alternative to Nitro PDF ?
     
  8. DocMadeEasy icon
    DocMadeEasy icon

    DocMadeEasy

     1 like
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    Our online tools are for users to edit, sign and send PDF files securely. Free and easy to use!

    74 DocMadeEasy alternatives
    DocMadeEasy screenshot 1

    License model

    • Freemium • Proprietary

    Application types

    Platforms

    • Online

    DocMadeEasy Features

    1.  Sign PDF files
    2.  Edit PDF
    DocMadeEasy iconNitro PDF Icon

    DocMadeEasy VS Nitro PDF

    Is DocMadeEasy a good alternative to Nitro PDF ?
     
6 of 6 Nitro PDF alternatives