Best Free PDF Readers for Windows in 2026
Adobe Acrobat Reader is still the most well-known PDF reader, but it’s far from the best option for most people. It’s bloated, updates constantly, and its attempts to upsell you to the paid version have gotten increasingly aggressive. There are free alternatives that do the job better and without the friction.
What You Already Have: Your Browser or Edge
Before installing anything, it’s worth noting that both Chrome and Edge open PDFs directly in the browser with basic features: zoom, text search, printing, and in Edge also basic annotations. For reading and sharing occasional PDFs, this might be enough.
SumatraPDF — the lightest option
If you want speed and minimal footprint, SumatraPDF is hard to beat. It loads in under a second, uses minimal RAM, and handles PDFs of any size without issues. No bloated GUI, no editing features — it just reads documents, very well.
It also supports other formats: ePub, Mobi, XPS, DjVu, CBR, and CBZ. If you have e-books or comics, it’s a good all-in-one solution. The executable is under 10 MB.
Foxit PDF Reader — balance of features and weight
Foxit Reader offers more complete features than SumatraPDF: annotations, text highlighting, basic digital signatures, and comments. The free version is functional, though Foxit does occasionally try to push you toward paid versions (with more subtlety than Adobe).
It’s the closest thing to Acrobat Reader in terms of features, but with better performance and without Adobe’s ecosystem baggage.
PDF24 Creator — for those who need to edit
If you need more than reading — merging PDFs, splitting them, compressing, converting, rotating pages — PDF24 Creator is the most complete free tool available. It includes both a desktop application and web tools, with no watermarks and no page limits.
Comparison
| Reader | Speed | Annotations | Basic editing | Size | Ads |
|---|---|---|---|---|---|
| Edge / Chrome | Fast | Edge yes | ❌ | Already installed | ❌ |
| SumatraPDF | Very fast | ❌ | ❌ | <10 MB | ❌ |
| Foxit Reader | Fast | ✅ | Basic | ~200 MB | Moderate |
| Adobe Acrobat | Slow | ✅ | Basic | >800 MB | High |
| PDF24 Creator | Fast | ✅ | Advanced | ~200 MB | Low |
Which Should You Pick?
If you only read PDFs: SumatraPDF. If you need to annotate and sign: Foxit Reader. If you need to edit, merge, or convert PDFs: PDF24. For very occasional use, your browser is already enough. None of these alternatives justify sticking with Adobe Acrobat Reader.
Frequently Asked Questions
Can I edit PDFs with these free tools?
Full text editing in PDFs requires paid tools. Free alternatives allow annotating, highlighting, adding comments, and merging/splitting. To edit document text, you’d need PDF24 Creator or online tools like ilovepdf.com.
Does SumatraPDF support PDF forms?
Yes, it supports basic form filling. For complex forms or those with digital certificates, Foxit Reader is more reliable.
Can I sign PDF documents for free?
Foxit Reader and PDF24 allow adding basic signatures (an image of your signature). For legally valid digital signatures, you need a digital certificate and country-specific tools.
Is Microsoft Edge’s built-in PDF reader any good?
For everyday use, yes. It loads PDFs quickly, has basic highlighting and annotations, and lets you add notes. What it lacks is support for complex forms and page manipulation.
Can SumatraPDF handle very large PDFs (100+ pages)?
Yes, that’s actually where it excels. Its progressive loading lets you navigate large documents without loading everything into memory at once.
