pdf.io AlternativesOnly apps categorised as PDF Readers

The best PDF Reader alternative to pdf.io is SumatraPDF, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to pdf.io and loads of them are PDF Readers so hopefully you can find a suitable replacement. Other interesting PDF Reader alternatives to pdf.io are Okular, Foxit PDF Reader, Evince and MuPDF.

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pdf.io alternatives are mainly PDF Readers but may also be PDF Editors or Ebook Readers.  Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of pdf.io.
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Free set of online tools for handling PDF files. Convert and edit your PDF files with incredible ease and speed!

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pdf.io alternatives page was last updated Mar 3, 2023
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  1. SumatraPDF icon
    SumatraPDF icon

    SumatraPDF

     1601 likes
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    Sumatra PDF is a free PDF, eBook (ePub, Mobi), XPS, DjVu, CHM, Comic Book (CBZ and CBR) viewer for Windows.

    108 SumatraPDF alternatives
    SumatraPDF screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Windows
    SumatraPDF screenshot 1
    SumatraPDF screenshot 2
    +3
    SumatraPDF screenshot 3

    Top SumatraPDF Features

    1.  Lightweight
    2.  Low memory usage
    3.  Ad-free
    4.  Optimal performance
    5.  Tabbed interface
    6.  Portable
    7.  Multi Format Reader
    8.  No registration required
    9.  Works Offline
    10.  Highlighter
    11.  PDF annotation
    12.  Global bookmarks
    SumatraPDF iconpdf.io Icon

    SumatraPDF VS pdf.io

    Is SumatraPDF a good alternative to pdf.io?
     

    • SumatraPDF is the most popular Windows alternative to pdf.io.

    • SumatraPDF is the most popular Open Source & free alternative to pdf.io.

    • SumatraPDF is Free and Open Sourcepdf.io is Free and Proprietary
    • SumatraPDF is Lightweightpdf.io is not according to our users
  2. Okular icon
    Okular icon

    Okular

     425 likes
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    Multi-platform, fast and packed with features, Okular allows you to read PDF documents, comics and EPub books, browse images, visualize Markdown documents, and much more.

    112 Okular alternatives
    Okular screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Windows
    • Linux
    • BSD
    • KDE Plasma
    • Flathub
    • Linux Mobile
    Okular screenshot 1
    Okular screenshot 2
    +2
    Okular screenshot 3

    Top Okular Features

    1.  PDF annotation
    2.  Text Highlighting
    3.  Lightweight
    4.  Tabbed interface
    5.  Ad-free
    6.  Dark Mode
    7.  Works Offline
    8.  KDE
    9.  Low memory usage
    10.  Customizable shortcuts
    11.  Privacy focused
    12.  Text editing
    Okular iconpdf.io Icon

    Okular VS pdf.io

    Is Okular a good alternative to pdf.io?
     

    • Okular is the most popular Linux alternative to pdf.io.

    • Okular is Free and Open Sourcepdf.io is Free and Proprietary
    • Okular is Lightweight and Privacy focusedpdf.io is not according to our users
  4. Foxit PDF Reader icon
    Foxit PDF Reader icon

    Foxit PDF Reader

     1366 likes
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    Foxit Reader is a free, light-weight PDF viewer available on multiple platforms. It allows users to view, annotate, form-fill, and sign PDF documents. The software supports standard PDF and XFA form filling and integrates with cloud storage services and enterprise Content...

    118 Foxit PDF Reader alternatives
    Foxit PDF Reader screenshot 1

    License model

    • Free Personal • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • ReactOS
    35 Languages
    Customize Tools

    Top Foxit PDF Reader Features

    1.  PDF annotation
    2.  Fill PDF Forms
    3.  Sign PDF files
    4.  Highlighter
    5.  Scan documents
    6.  Text to Speech
    7.  Tablet support
    8.  Booklet printing
    9.  Lightweight
    10.  Support for scripting
    11.  Portable
    12.  Spell Checking
    Bundleware

    The installer tries to install McAfee WebAdvisor and PhantomPDF Business. These can be skipped by clicking Decline on each.

    Foxit PDF Reader iconpdf.io Icon

    Foxit PDF Reader VS pdf.io

    Is Foxit PDF Reader a good alternative to pdf.io?
     

    • Foxit PDF Reader is the most popular Mac alternative to pdf.io.

    • Foxit PDF Reader is Free Personal and Proprietarypdf.io is Free and Proprietary
    • Foxit PDF Reader is Lightweightpdf.io is not according to our users
  5. Ad
    Screenshot
    Ashampoo PDF Free icon

    Ashampoo PDF Free

    Ashampoo PDF Free is a software for opening, reading, and creating PDF files. It includes a built-in printer driver for generating PDFs from any Windows application, a compact and fast PDF reader, and the ability to fill out inte...

    https://www.ashampoo.com
    Learn More
  6. Evince icon
    Evince icon

    Evince

     452 likes
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    Evince (or GNOME Document Viewer) is a document viewer for multiple document formats: PDF, Postscript, djvu, tiff, dvi, XPS, SyncTex support with gedit, comics books (cbr,cbz,cb7 and cbt) and others. See Supported Document Formats for details.

    116 Evince alternatives
    Evince screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Linux
    • PortableApps.com
    • Flathub
    • GNOME
    Evince screenshot 1
    Evince screenshot 2
    +3
    Evince screenshot 3

    Top Evince Features

    1.  Lightweight
    2.  PDF annotation
    3.  Invert colours
    4.  Multiple languages
    5.  Dark Mode
    6.  Ad-free
    7.  Portable
    8.  Works Offline
    9.  No registration required
    10.  Minimalistic
    11.  No Tracking
    12.  Privacy focused
    Evince iconpdf.io Icon

    Evince VS pdf.io

    Is Evince a good alternative to pdf.io?
     
  7. MuPDF icon
    MuPDF icon

    MuPDF

     147 likes
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    MuPDF is a highly versatile, customizable PDF and XPS interpreter solution that can be used across a wide range of applications as a PDF renderer, viewer, or toolkit.

    89 MuPDF alternatives
    MuPDF screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Windows
    • Linux
    • Android
    • F-Droid
    • Xfce
    MuPDF screenshot 1
    iPad (1)
    +3
    iPad (2)

    MuPDF Features

    1.  Lightweight
    2.  Portable
    3.  Vim key mapping
    4.  PDF annotation
    5.  Ad-free
    MuPDF iconpdf.io Icon

    MuPDF VS pdf.io

    Is MuPDF a good alternative to pdf.io?
     

    • MuPDF is the most popular Android alternative to pdf.io.

    • MuPDF is Free and Open Sourcepdf.io is Free and Proprietary
    • MuPDF is Lightweightpdf.io is not according to our users
  8. Adobe Acrobat Reader icon
    Adobe Acrobat Reader icon

    Adobe Acrobat Reader

     442 likes
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    View, sign, collaborate on and annotate PDF files with our free Acrobat Reader software. And to easily edit and convert your PDFs into file formats like Excel and Word, try out PDF editor and converter Acrobat Pro DC.

    108 Adobe Acrobat Reader alternatives
    Adobe Acrobat Reader screenshot 1

    License model

    • Freemium • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Adobe Acrobat Reader screenshot 1
    Adobe Acrobat Reader screenshot 2
    +9
    Adobe Acrobat Reader screenshot 3

    Top Adobe Acrobat Reader Features

    1.  Edit PDF
    2.  PDF annotation
    3.  Fill PDF Forms
    4.  Document Annotations
    5.  Create PDF files
    6.  Dark Mode
    7.  Combine PDF
    8.  Sign PDF files
    9.  OCR
    10.  Lightweight
    11.  PDF compression
    12.  No registration required
    Adobe Acrobat Reader iconpdf.io Icon

    Adobe Acrobat Reader VS pdf.io

    Is Adobe Acrobat Reader a good alternative to pdf.io?
     

    • Adobe Acrobat Reader is the most popular iPhone, iPad & Android Tablet alternative to pdf.io.

    • Adobe Acrobat Reader is Freemium and Proprietarypdf.io is Free and Proprietary
    • Adobe Acrobat Reader is Lightweightpdf.io is not according to our users
  10. PDFgear icon
    PDFgear icon

    PDFgear

     29 likes
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    Read, edit, convert, merge, and sign PDF files across devices, for completely free and without signing up.

    22 PDFgear alternatives
    PDFgear screenshot 1

    License model

    • Free • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • iPhone
    • iPad
    • Android
    • Android Tablet
    PDFgear screenshot 1
    PDFgear screenshot 2
    +2
    PDFgear screenshot 3

    Top PDFgear Features

    1.  Combine PDF
    2.  Ad-free
    3.  Split PDF files
    4.  OCR
    5.  No registration required
    6.  Works Offline
    7.  PDF annotation
    8.  PDF compression
    9.  Lightweight
    10.  Sign PDF files
    11.  Dark Mode
    12.  Full-Text Search
    PDFgear iconpdf.io Icon

    PDFgear VS pdf.io

    Is PDFgear a good alternative to pdf.io?
     
  11. Firefox PDF Viewer (PDF.js) icon
    Firefox PDF Viewer (PDF.js) icon

    Firefox PDF Viewer (PDF.js)

     164 likes
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    PDF Viewer (aka pdf.js) is a new revolutionary extension using web standard technologies that allows you to display within Mozilla Firefox almost all PDF files found on the web without a plugin.

    79 Firefox PDF Viewer (PDF.js) alternatives
    Firefox PDF Viewer (PDF.js) screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Google Chrome
    • Opera
    • Mozilla Firefox
    Firefox PDF Viewer (PDF.js) screenshot 1

    Top Firefox PDF Viewer (PDF.js) Features

    1.  Browser integration
    2.  Lightweight
    3.  Add/remove pages
    4.  PDF annotation
    5.  Privacy focused
    6.  Ad-free
    7.  No Tracking
    8.  Dark Mode
    9.  Works Offline
    10.  Full-Text Search
    11.  No registration required
    12.  Browser extension
    Firefox PDF Viewer (PDF.js) iconpdf.io Icon

    Firefox PDF Viewer (PDF.js) VS pdf.io

    Is this a good alternative to pdf.io?
     
  12. MJ PDF Reader icon
    MJ PDF Reader icon

    MJ PDF Reader

     19 likes
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    A totally free of cost and ads PDF documents reader.

    66 MJ PDF Reader alternatives
    MJ PDF Reader screenshot 1
    MJ PDF Reader screenshot 2
    +1
    MJ PDF Reader screenshot 3

    License model

    • Free • Open Source

    Application type

    Platforms

    • Android

    MJ PDF Reader Features

    1.  Lightweight
    2.  Ad-free
    3.  Works Offline
    4.  Dark Mode
    5.  Privacy focused
    6.  Full-Text Search
    7.  No registration required
    8.  No Tracking
    9.  PDF annotation
    MJ PDF Reader iconpdf.io Icon

    MJ PDF Reader VS pdf.io

    Is MJ PDF Reader a good alternative to pdf.io?
     
  13. Preview icon
    Preview icon

    Preview

     123 likes
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    Preview is a simple and elegant application by Apple for viewing and working with images and PDF documents.

    157 Preview alternatives
    Preview screenshot 1
    Preview screenshot 2
    Preview screenshot 3

    License model

    • Free • Proprietary

    Application types

    Platforms

    • Mac

    Preview Features

    1.  Fill PDF Forms
    2.  Edit PDF
    3.  Image resizing
    4.  Built-in Image converter
    5.  PDF annotation
    6.  Lightweight
    7.  Combine PDF
    Preview iconpdf.io Icon

    Preview VS pdf.io

    Is Preview a good alternative to pdf.io?
     
  14. Xodo icon
    Xodo icon

    Xodo

     69 likes
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    Xodo is the ultimate cross-platform PDF viewer and annotator. Powerful, fast, and optimized for all phones and tablets, Xodo makes it easy to access, edit, mark up, sort, share, sync, manage, sign, and more with even the most complex PDF documents.

    109 Xodo alternatives
    Xodo PDF - comment, highlight, underline & more

    License model

    Application types

    Platforms

    • Windows
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Google Chrome
    Xodo Connect - collaborate with others
    Xodo PDF - edit, and annotate on PDF
    +9
    Xodo PDF - clear and sharp page view

    Top Xodo Features

    1.  PDF annotation
    2.  Dark Mode
    3.  Export to PDF
    4.  Google Drive integration
    5.  Sign PDF files
    6.  Annotations
    7.  Ad-free
    8.  Lightweight
    9.  Combine PDF
    10.  Split PDF files
    11.  OCR
    12.  Real time collaboration
    Xodo iconpdf.io Icon

    Xodo VS pdf.io

    Is Xodo a good alternative to pdf.io?
     

    • Xodo is the most popular Web-based alternative to pdf.io.

    • Xodo is the most popular commercial alternative to pdf.io.

    • Xodo is Paid and Proprietarypdf.io is Free and Proprietary
    • Xodo is Lightweightpdf.io is not according to our users
  15. Qoppa PDF Studio icon
    Qoppa PDF Studio icon

    Qoppa PDF Studio

     81 likes
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    Create, Convert, Review and Edit PDF Documents on Windows, macOS, and Linux.

    189 Qoppa PDF Studio alternatives
    Annotate

    License model

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Chrome OS
    Dark Mode
    Add Watermarks
    +7
    Digital Signature

    Top Qoppa PDF Studio Features

    1.  Edit PDF
    2.  Sign PDF files
    3.  Scan to PDF
    4.  PDF Redaction
    5.  Convert PDF to Word document
    6.  Create PDF files
    7.  Fill PDF Forms
    8.  Dark Mode
    9.  Text to Speech
    10.  OCR
    11.  Spell Checking
    12.  Ad-free
    Qoppa PDF Studio iconpdf.io Icon

    Qoppa PDF Studio VS pdf.io

    Is Qoppa PDF Studio a good alternative to pdf.io?
     
12 of 71 pdf.io alternatives