How to Compress PDF on Windows (Free, No Software Required)
Quick answer: Open DocMint Compress PDF in Chrome or Edge on Windows. No software installation needed — compress directly in your browser and your files never leave your PC.
Does Windows Have a Built-in PDF Compressor?
No. Windows 10 and 11 include a "Print to PDF" feature, but it does not reduce file size — it simply creates a new PDF. For actual compression, you need a dedicated tool.
The easiest free option on Windows is DocMint — it works in your browser with no installation required.
Method 1: Using DocMint in Chrome or Edge (Recommended)
- Open Chrome or Microsoft Edge on your Windows PC
- Go to docmint.online/compress-pdf
- Click Select PDF or drag your file onto the page
- Choose Recommended or High compression
- Click Compress PDF
- Click Download to save to your Windows PC
Privacy advantage on Windows:
DocMint processes everything in your browser. Your PDF never gets uploaded to any server — unlike iLovePDF and SmallPDF which require server uploads.
Method 2: Using Microsoft Word (Built-in, Limited)
If you have Microsoft Word on Windows, you can reduce PDF size slightly:
- Open the PDF in Microsoft Word (it converts to editable format)
- Go to File → Save As → PDF
- Click Options and select Minimum size (publishing online)
- Save
This method gives limited compression and may alter formatting. DocMint gives better results with no formatting changes.
Compression Levels Explained
- Low — Minimal reduction, maximum quality. For photo-heavy documents.
- Recommended — 40–70% reduction. Best for most Windows users.
- High — Maximum reduction. For text documents where image quality is less critical.
Frequently Asked Questions
Can I compress a PDF on Windows without installing software?
Yes. DocMint works in any Windows browser — Chrome, Edge, or Firefox. No installation required.
Does Windows have a built-in PDF compressor?
No. Windows does not include a built-in PDF compression tool. The Print to PDF feature does not reduce file size. DocMint is the easiest free option on Windows.
Is DocMint safe to use on Windows?
Yes. DocMint processes everything in your browser. Your files never leave your Windows PC, making it completely private.
Which Windows browser works best with DocMint?
Chrome and Edge both work perfectly. Edge is pre-installed on Windows 10 and 11 and works great with DocMint.
Can I compress multiple PDFs at once on Windows?
Yes. DocMint supports batch compression — you can compress multiple PDFs simultaneously on Windows.