SumatraPDF
Open SourceExtremely fast, minimal PDF and ebook reader.
- Opens documents near-instantly
- Reads PDF, ePub, MOBI, DjVu and CBZ
- Portable single-executable option
3 pdf tools programs worth considering instead of — or alongside — PDFsam Basic.
Extremely fast, minimal PDF and ebook reader.
Fast, full-featured PDF reader with annotation tools.
The reference PDF reader, from the format's creator.
PDFsam Basic performs the core PDF manipulation tasks — splitting, merging, rotating, extracting and mixing pages — entirely on your own machine, so confidential documents never get uploaded to a web service.
It is open source and runs on Windows, macOS, Linux. Below are 3 pdf tools programs that cover the same ground — some open-source, some cross-platform, each free to use.
| Program | Licence | Platforms | Best known for |
|---|---|---|---|
| SumatraPDF | Open Source | Windows | Opens documents near-instantly |
| Foxit PDF Reader | Free | Windows, macOS, Linux, Android, iOS | Annotation and commenting tools |
| Adobe Acrobat Reader | Free tier | Windows, macOS, Android, iOS | Reference-quality PDF rendering |
SumatraPDF opens documents almost instantly and stays out of the way, reading PDF, ePub, MOBI, CBZ, DjVu and XPS. Notable for opens documents near-instantly and reads pdf, epub, mobi, djvu and cbz. Runs on Windows.
Foxit PDF Reader is a lighter, faster alternative to Adobe's reader while still supporting annotation, commenting, form filling and digital signatures — the usual pick when Acrobat Reader feels too heavy. Notable for annotation and commenting tools and pdf form filling and signing. Runs on Windows, macOS, Linux, Android, iOS.
Acrobat Reader is the official reader from the company that created the PDF format, giving it the most reliable rendering of complex documents, interactive forms and digital signatures. Notable for reference-quality pdf rendering and fills and submits interactive forms. Runs on Windows, macOS, Android, iOS.
If you want fully auditable, open-source code, SumatraPDF is the one to try first. For the widest platform coverage, Foxit PDF Reader, Adobe Acrobat Reader run on three or more operating systems. On a Mac, Foxit PDF Reader, Adobe Acrobat Reader support macOS natively.
All 3 are free to download from the publisher's own website, so installing two or three and testing them on your own files is the fastest way to decide — it costs nothing but a few minutes.