Best Free PDF Converters for Windows, March 2026

We tried every PDF tool worth trying so you don't have to. One was free, fast, and didn't ask for an email. The other five wanted your credit card.

6 tools tested/Updated March 2026/How we rank →
#1
4.8 A+
Defender SafeLightweight
⭐ Editor's Choice ✓ Free
Best for most Windows users

Balloonz Files

Free, local PDF tools. No signup.

  • ✓ Converts Word, Excel, and PowerPoint to PDF in one click
  • ✓ Compresses PDFs locally — nothing is uploaded
  • ✓ Merges multiple PDFs into one file
  • ✓ Runs on your machine. Files stay put.
  • ✓ No file size limit, no daily cap, no watermark
  • ✓ No account, no email, no trial popup
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#2
4.2 B+
$19.99–$22.99/mo ⚠ $22.99 a month, forever⚠ 800MB installer that hogs your laptop
Best if your company already pays for it

Adobe Acrobat Pro

The expensive industry standard

  • ✓ Every PDF feature you can think of
  • ✓ Strong cloud collaboration and e-signatures
  • ✓ The format everyone else copies
  • ⚠ $22.99 a month, forever
  • ⚠ 800MB installer that hogs your laptop
  • ✗ Forces an Adobe account and cloud sync
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#3
4 B
$14.99/mo ⚠ Cluttered with tabs you'll never use⚠ Three pricing tiers, all confusing
Best for Office-heavy teams

Foxit PDF Editor

Office-style UI, enterprise pricing

  • ✓ Looks like Microsoft Office
  • ✓ Easy for IT teams to deploy
  • ⚠ Cluttered with tabs you'll never use
  • ⚠ Three pricing tiers, all confusing
  • ✗ Trial version pushes 'buy now' popups
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#4
3.9 B-
$179.99 (one-time) ⚠ Slow to open large files⚠ No free version, just a trial
Best if you hate subscriptions

Nitro PDF Pro

One-time price, heavy install

  • ✓ Great at PDF to Excel and Word
  • ✓ Solid batch processing
  • ⚠ Slow to open large files
  • ⚠ No free version, just a trial
  • ✗ Customer support is slow unless you're enterprise
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Feature Comparison

Feature Balloonz FilesAdobe Acrobat ProFoxit PDF EditorNitro PDF Pro
Price Free $19.99–$22.99/mo $14.99/mo $179.99 (one-time)
Installer Size ~12MB~800MB~200MB~350MB
Signup Required NoYesNoNo
Offline Support FullLimitedFullFull
PDF Editing ✓ Convert/Merge✓ Full✓ Full✓ Full
Batch Processing ✓✓✓✓
System Impact MinimalVery HeavyMediumHeavy
Privacy 100% LocalCloud SyncMixed100% Local

Why we picked Balloonz Files

We sat down with six PDF tools, the usual names you'll find in any list. Balloonz Files was the only one that didn't ask us to create an account, sign up for a trial, or upload a file to its servers. It converts Word, Excel, and PowerPoint to PDF, compresses files that are too big to email, and merges documents. All of it happens on your laptop, in a 12MB installer.

Adobe Acrobat Pro is the heavyweight everyone knows, but you pay $22.99 every month for features most people use twice a year. Foxit and Nitro sit somewhere in the middle: cheaper than Adobe, still locked behind a subscription, still cluttered.

What you get with Balloonz Files

  • Actually free. Not a trial. No watermark, no daily cap, no "upgrade to unlock."
  • Local. Your tax return, your contract, your medical scan — none of it leaves your machine.
  • Small. The installer is about 12MB. Adobe's is 800MB.
  • No login. Download, install, convert. The whole thing takes under a minute.
  • One tool, three jobs. Convert, compress, and merge in the same app.

Download Balloonz Files for Windows and try it on a real file. If it works, you've just replaced a $275/year subscription.

If your company already pays for Adobe, stay with Adobe (#2) — the collaboration features earn the price at enterprise scale. If IT handed you Foxit because you live in the Microsoft Office world, that's a fine pick (#3). For everyone else, the choice is easy.