Free Okular alternatives

All Okular alternatives

1. 

   

   Sumatra PDF

   17.7KstarsLike

   Sumatra PDF is a small, fast document reader for Windows that opens PDF, EPUB, MOBI, XPS, DjVu and comic book files. It focuses on quick startup and a minimal interface rather than editing, with basic annotation support and a portable version that runs without installation. It is free and open source under the GPLv3.

   6 Sumatra PDF alternatives

   Pros

   • Very fast startup and a minimal interface
   • Opens PDF, EPUB, MOBI, DjVu and comic book files
   • Portable version runs without installation

   Cons

   • Available on Windows only, with no Mac or Linux version
   • No PDF editing and only basic annotations

   Cost / License

   FreeOpen source

   Categories

   PDF Editors

   Platforms

   Windows

   Features

   Ad-freeOffline modePDF annotation

   Visit websiteMore about Sumatra PDF
2. 

   

   Adobe Acrobat

   2.2(646) · App StoreLike

   Adobe Acrobat is the PDF application from Adobe, the company that created the format. The free Acrobat Reader views, annotates and signs files, while paid Acrobat Standard and Pro add text and image editing, OCR, conversion to and from Office formats, redaction, comparison and e-signature requests. An AI Assistant can summarise documents and answer questions about them.

   11 Adobe Acrobat alternatives

   Pros

   • Reference PDF tool from the company that created the format
   • Free Reader for viewing, annotating and signing
   • Pro adds editing, OCR, redaction, comparison and signature requests

   Cons

   • Editing and conversion require a costly subscription
   • Heavy app with frequent prompts to upgrade

   Cost / License

   FreemiumProprietary

   Categories

   PDF EditorsE-signature

   Platforms

   WebWindowsMaciPhoneAndroidBrowser extension

   Features

   AI assistantElectronic signaturesMerge and split PDFsOCRPDF annotationPDF conversion

   Visit websiteMore about Adobe Acrobat
3. 

   

   PDFgear

   4.7(8.8K) · App StoreLike

   PDFgear is a free PDF application from Singapore-based PDF Gear Tech for reading, editing, converting, merging, compressing and signing documents. It includes OCR for scanned files and a Copilot assistant that summarises PDFs and carries out edits from chat requests. It is available on Windows, Mac, iPhone, iPad, Android and the web, without watermarks or a required account.

   10 PDFgear alternatives

   Pros

   • Free editing, conversion and signing without watermarks
   • No account required to use the apps
   • Copilot assistant summarises PDFs and applies edits from chat

   Cons

   • Text editing is less precise than in Acrobat or Foxit
   • Younger product with less of a track record than established editors

   Cost / License

   FreeProprietary

   Categories

   PDF Editors

   Platforms

   WebWindowsMaciPhoneAndroid

   Features

   AI assistantElectronic signaturesMerge and split PDFsOCRPDF conversionPDF text editing

   Visit websiteMore about PDFgear
4. 

   

   PDF24 Tools

   Like

   PDF24 Tools is a free collection of PDF utilities from the German company Geek Software, covering merging, splitting, compressing, converting, OCR, editing, signing and redacting. The tools run in the browser, and the PDF24 Creator app for Windows offers the same features offline along with a virtual PDF printer. There is no paid tier, and the website shows ads.

   10 PDF24 Tools alternatives

   Pros

   • Completely free, with no paid tier
   • Wide range of tools, including OCR, redaction and signing
   • Windows app works offline and adds a virtual PDF printer

   Cons

   • The website shows ads alongside the tools
   • The desktop app is Windows only
   • Interface is functional rather than modern

   Cost / License

   FreeProprietary

   Categories

   PDF Editors

   Platforms

   WebWindows

   Features

   Electronic signaturesMerge and split PDFsOCROffline modePDF conversionPDF text editing

   Visit websiteMore about PDF24 Tools
5. 

   

   Stirling-PDF

   94KstarsLike

   Stirling-PDF is an open-core PDF application you can run on your own server, typically with Docker, so documents never leave your infrastructure. It bundles tools to merge, split, compress, convert, OCR, sign, redact and edit PDFs, plus a REST API and pipelines for automating repetitive jobs. The core is MIT-licensed and free; paid plans add enterprise features such as SSO.

   7 Stirling-PDF alternatives

   Pros

   • Self-hosted, so documents never leave your infrastructure
   • Dozens of tools for merging, OCR, redaction and conversion
   • REST API and pipelines automate repetitive jobs

   Cons

   • Requires running a server, typically with Docker
   • SSO and other enterprise features are paid

   Cost / License

   FreemiumOpen source

   Categories

   PDF Editors

   Platforms

   WebSelf-hosted

   Features

   API accessElectronic signaturesMerge and split PDFsOCRPDF conversionPDF text editing

   Visit websiteMore about Stirling-PDF