SumatraPDF
Open Sourceby Krzysztof Kowalczyk
Extremely fast, minimal PDF and ebook reader.
- Opens documents near-instantly
- Reads PDF, ePub, MOBI, DjVu and CBZ
- Portable single-executable option
4 Best Free PDF Tools Software for Windows in 2026
Readers, splitters and mergers for working with PDF documents on the desktop. Every program below runs on Windows.
- 4 Windows programs
- 2 open source
- ₹0 to download
Free pdf tools programs for Windows
PDFsam Basic
Open Sourceby Sober Lemur
Split, merge, rotate and extract PDF pages offline.
- Merge and split PDF documents
- Rotate and extract specific pages
- Works fully offline
Foxit PDF Reader
Freeby Foxit Software
Fast, full-featured PDF reader with annotation tools.
- Annotation and commenting tools
- PDF form filling and signing
- Noticeably lighter than Acrobat Reader
Adobe Acrobat Reader
Free tierby Adobe
The reference PDF reader, from the format's creator.
- Reference-quality PDF rendering
- Fills and submits interactive forms
- Comment and annotate documents
Choosing pdf tools software on Windows
All 4 programs listed here have a native Windows build — this is not a list of software that merely "might work" through a compatibility layer. 2 are open source.
Since every option is free, testing two or three on your own files is usually faster and more reliable than reading further comparisons. SumatraPDF is the most widely adopted of these and a reasonable starting point.
Frequently asked questions
What is the best free pdf tools software for Windows?
SumatraPDF extremely fast, minimal PDF and ebook reader. PDFsam Basic and Foxit PDF Reader are the other most common picks.
Are these really free on Windows?
Yes. Each is labelled with its licence — open source, free, or free tier — so you know exactly what you are getting before you download.
Where do the downloads come from?
The publisher's own website, every time. We host no installers, which is the single most effective protection against the bundled adware that plagues software download portals.