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Head-to-head · PDF Readers

Preview vs SumatraPDF

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Preview #3 in PDF Readers 9.1/10 Free plan Free plan✓ 3 of 4 features Visit Apple
SumatraPDF #4 in PDF Readers 9.0/10 Free plan Free plan✓ 4 of 4 features Visit SumatraPDF

Preview leads on 0 checks, SumatraPDF on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scorePreview · 9.1/10
  • Free planboth
  • Most featuresSumatraPDF · 4 of 4

Preview scores higher on our rubric for pdf readers: 9.1 against 9.0 out of 10; our editors rank them #3 and #4.

Preview is the better fit for apple users wanting a capable free reader. SumatraPDF is the better fit for portable Windows reading with signatures.

  • Preview fits best

    Apple users wanting a capable free reader

  • SumatraPDF fits best

    Portable Windows reading with signatures

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Side by side

Feature Preview 9.1/10 Visit ↗ SumatraPDF 9.0/10 Visit ↗
At a glance
Editor score 9.1 9.0
Ranking #3 in PDF Readers #4 in PDF Readers
Best for Apple users wanting a capable free reader Portable Windows reading with signatures
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Desktop Desktop
Platforms macOS Windows
Support Docs Docs, Community
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market
Features Preview 3/4 · SumatraPDF 4/4
Annotation tools ✓ ✓
Form filling ✓ ✓
Offline access ✓ ✓
Text-to-speech Not checked yet ✓ (best)
Specs
OCR support Not checked yet Not checked yet
Platform support Desktop Desktop
Our review
Pros
  • Annotates, signs, fills, and manages PDF pages
  • Includes basic OCR, text search, compression, and protection
  • Works with local files and iCloud on Apple platforms
  • Opens PDFs, ebooks, comics, images, and several document formats
  • Supports annotations, digital signatures, and Windows text-to-speech
  • Portable deployment and command-line PDF operations support local workflows
Cons
  • Available on macOS and iOS rather than broader platforms
  • OCR support is basic
  • Cloud access centers on iCloud
  • Windows-only, with no macOS, Linux, web, or mobile versions
  • Cannot fill PDF forms, despite supporting form-field highlighting
  • Scanned pages require OCR elsewhere
Our verdict

Preview is Apple’s built-in utility for viewing and editing PDFs and images on Mac and iPhone. It handles multipage PDF navigation, annotations, form filling, signatures, page management, text search, exporting, compression, password…

Read the review →

SumatraPDF is a free, open-source desktop reader for Windows. It is aimed at people who want to read PDFs and a broad set of other local formats, including EPUB, MOBI, CBZ, DjVu, XPS, CHM, and image files. Text search, document navigation,…

Read the review →
  1. PreviewPDF Readers 9.1Free plan
  2. SumatraPDFPDF Readers 9.0Free plan

Strengths and trade-offs

  • Preview — where it wins

    • Annotates, signs, fills, and manages PDF pages
    • Includes basic OCR, text search, compression, and protection
    • Works with local files and iCloud on Apple platforms

    Where it doesn't

    • Available on macOS and iOS rather than broader platforms
    • OCR support is basic
    • Cloud access centers on iCloud
  • SumatraPDF — where it wins

    • Opens PDFs, ebooks, comics, images, and several document formats
    • Supports annotations, digital signatures, and Windows text-to-speech
    • Portable deployment and command-line PDF operations support local workflows

    Where it doesn't

    • Windows-only, with no macOS, Linux, web, or mobile versions
    • Cannot fill PDF forms, despite supporting form-field highlighting
    • Scanned pages require OCR elsewhere
  • Preview9.1/10 · Free plan

    A capable free PDF reader for Apple users, with practical editing and signing tools.

    Visit AppleFull verdict →
  • SumatraPDF9.0/10 · Free plan

    A portable Windows reader with broad format support, annotations, signatures, and command-line tools.

    Visit SumatraPDFFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update