KDAN PDF vs SumatraPDF

KDAN PDF7.2Visit SumatraPDF7.1Visit

Higher score KDAN PDF #5 in PDF Readers 7.2/10 Free plan · paid from $59.99/yr · 7-day trial Free plan✓ 1 of 4 features Visit KDAN PDF

vs

SumatraPDF #6 in PDF Readers 7.1/10 Free plan Free plan✓ 4 of 4 features Visit SumatraPDF

• KDAN PDF fits best

  Users needing PDF editing and conversion

• SumatraPDF fits best

  Portable Windows reading with signatures

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Side by side

Feature	KDAN PDF 7.2/10 Visit ↗	SumatraPDF 7.1/10 Visit ↗
At a glance
Editor score	7.2	7.1
Ranking	#5 in PDF Readers	#6 in PDF Readers
Best for	Users needing PDF editing and conversion	Portable Windows reading with signatures
Pricing model	Free plan + paid	Free
Starting price	Not published	Not published
Free plan	✓	✓
Free trial	—	—
Deployment	Desktop, Mobile	Desktop
Platforms	Windows, macOS, iOS, Android	Windows
Support	Email, Docs	Docs, Community
Built for	Small business, Mid-market	Solo, Small business, Mid-market
Features KDAN PDF 1/4 · SumatraPDF 4/4
Annotation tools	✓	✓
Form filling	Not published	✓ (best)
Offline access	Not published	✓ (best)
Text-to-speech	Not published	✓ (best)
Specs
OCR support	Not published	Not published
Platform support	Not published	Desktop
Our review
Pros	Combines editing, annotation, forms, OCR, conversion, and page management Runs across Windows, macOS, iOS, and Android AI+ adds redaction, summarization, review, and translation tools	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	Advanced editing and conversion require a paid plan Lifetime licensing is limited to desktop use per device Cloud integrations listed are iCloud and Dropbox	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	KDAN PDF is a PDF reader and editor for individuals, office workers, educators, legal professionals, and small businesses. Its free tier covers viewing PDFs, annotations, handwriting, signatures, and form filling. Across Windows, macOS,… 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 →

Strengths and trade-offs

• KDAN PDF — where it wins

  • Combines editing, annotation, forms, OCR, conversion, and page management
  • Runs across Windows, macOS, iOS, and Android
  • AI+ adds redaction, summarization, review, and translation tools

  Where it doesn't

  • Advanced editing and conversion require a paid plan
  • Lifetime licensing is limited to desktop use per device
  • Cloud integrations listed are iCloud and Dropbox

• 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

• KDAN PDF7.2/10 · Free plan · paid from $59.99/yr · 7-day trial

  A flexible PDF editor with free basics, paid productivity tools, and AI workflows.

  Visit KDAN PDFFull verdict →
• SumatraPDF7.1/10 · Free plan

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

  Visit SumatraPDFFull verdict →