Do You Really Need to Pay for PDF Software?
Adobe Acrobat Pro costs a significant amount per month — but for most people's PDF needs, free tools handle the job perfectly well. Whether you need to merge files, fill out a form, compress a PDF, or convert it to a Word document, there are free and legitimate options for every task.
Here's a breakdown of the best free PDF tools for Windows, organized by what you need to do.
For Viewing PDFs: Your Browser Is Enough
You probably don't need a dedicated PDF reader. Both Microsoft Edge (built into Windows 10/11) and Google Chrome can open, view, and print PDF files natively. Edge even has basic annotation tools like highlighting and freehand drawing.
If you prefer a dedicated reader, Sumatra PDF is the gold standard: it's tiny (under 10 MB), opens instantly, and is 100% free and open source.
For Editing PDFs: LibreOffice Draw
Full PDF editing (changing existing text, repositioning elements) is genuinely difficult without paid software — PDFs aren't designed to be edited the way Word documents are. However, LibreOffice Draw (part of the free LibreOffice suite) can open PDFs and lets you modify text blocks, move images, and add annotations.
- Free and open source
- Works best on simpler PDFs; complex layouts may shift
- Can also export edited files back to PDF
For Merging PDFs: PDF24 Creator
PDF24 Creator is a free desktop app that handles a wide range of PDF tasks with a clean interface:
- Merge multiple PDFs into one
- Split a PDF into separate pages or page ranges
- Rotate and reorder pages
- Compress PDFs to reduce file size
- Add page numbers, watermarks, or headers
It also installs a virtual PDF printer so you can "print to PDF" from any application. Download only from pdf24.org.
For Converting PDF to Word: Online2PDF or LibreOffice Writer
PDF-to-Word conversion is tricky because it requires interpreting a rendered layout. Here are two free approaches:
- LibreOffice Writer: Open a PDF directly in LibreOffice Writer. It attempts to reconstruct the document as an editable file. Quality varies, but it's completely offline and private.
- Online2PDF.com: A web-based converter that handles the conversion server-side. It's free and supports batch conversions. Note that you're uploading your document to a third-party server — avoid using it for confidential documents.
For Filling PDF Forms: PDF24 or Your Browser
Many PDFs contain interactive form fields (text boxes, checkboxes, radio buttons). Both Microsoft Edge and PDF24 Creator allow you to fill and save interactive PDF forms without any additional software.
For forms that aren't interactive (they're just images of forms), you'll need a tool that lets you place text boxes over the PDF — PDF24 Creator handles this via its annotation tools.
For Compressing PDFs: Ghostscript or PDF24
Ghostscript is a powerful command-line tool that can dramatically reduce PDF file size. It's more technical but gives you precise control over output quality. PDF24 Creator offers a simpler GUI-based compression option that wraps similar functionality.
Quick Tool Finder
| Task | Best Free Tool | Type |
|---|---|---|
| View PDFs | Microsoft Edge / Sumatra PDF | Desktop |
| Edit PDFs | LibreOffice Draw | Desktop |
| Merge / Split | PDF24 Creator | Desktop |
| PDF to Word | LibreOffice Writer / Online2PDF | Desktop / Web |
| Fill forms | Microsoft Edge / PDF24 | Desktop |
| Compress | PDF24 Creator / Ghostscript | Desktop |
Final Advice
For most users, PDF24 Creator combined with LibreOffice covers virtually every PDF need without paying a cent. Download both from their official sites, and you'll have a complete, trustworthy PDF toolkit on your Windows PC.