Best Free PDF Tools 2025 — Smallpdf vs ILovePDF vs PDF24 vs Sejda vs PDFInOne
Looking for the best free PDF tool? This comparison covers the five most popular options — Smallpdf, ILovePDF, PDF24, Sejda, and PDFInOne — and honestly shows what each one costs, what data they collect, and where the limits are.
🏆 Spoiler: only one tool is truly unlimited, truly free, and never uploads your files to a server.
The Big Comparison Table
| Feature | Smallpdf | ILovePDF | PDF24 | Sejda | PDFInOne |
|---|---|---|---|---|---|
| Truly free | ⚠️ Limited | ⚠️ Limited | ✅ Yes | ⚠️ Limited | ✅ Yes |
| No file upload to server | ❌ Uploads | ❌ Uploads | ❌ Uploads | ❌ Uploads | ✅ Never |
| No registration required | ⚠️ For more | ⚠️ For more | ✅ Yes | ✅ Yes | ✅ Yes |
| Daily task limit | ❌ 2/day free | ⚠️ Limited | ✅ Unlimited | ⚠️ 3/hour | ✅ Unlimited |
| File size limit | ❌ 5 MB free | ⚠️ 100 MB | ✅ No limit | ❌ 50 MB | ✅ No limit |
| GDPR-compliant by design | ⚠️ Policy | ⚠️ Policy | ⚠️ Policy | ⚠️ Policy | ✅ No data sent |
| Works offline | ❌ No | ❌ No | ⚠️ Desktop app | ❌ No | ✅ Yes (after load) |
| Number of tools | 21 | 25 | 25 | 18 | 26 |
| OCR (scan to text) | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |
| Sign PDF | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |
| Price for unlimited | €12/month | €6.99/month | Free | €7.50/month | Free forever |
| Ads | ⚠️ Yes | ⚠️ Yes | ⚠️ Yes | ⚠️ Yes | ⚠️ Minimal |
Tool-by-Tool Breakdown
Smallpdf — Polished, but Expensive for Full Access
Smallpdf is one of the most popular PDF tools online with over 25 million monthly users. The interface is clean and the tools work well. The catch: the free plan limits you to 2 tasks per day and a 5 MB file size. For anything beyond that you need a subscription at €12/month. Your files are uploaded to Smallpdf's servers for processing — something to consider for confidential documents.
Good for: Occasional light use, users who don't mind a subscription.
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ILovePDF — Many Tools, Upload Required
ILovePDF offers 25+ tools and is widely used, especially for combining and splitting PDFs. The free tier allows more tasks than Smallpdf but still has daily limits and requires file uploads to their servers. A paid plan removes limits. Like Smallpdf, your documents leave your device during processing.
Good for: Users who want a wide range of tools and don't mind uploads.
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PDF24 — Truly Free, But Server-Based
PDF24 from Geek Software GmbH (Germany) is the closest competitor in the "free" category — no daily limits, no registration required. It also has a desktop app for offline use. The downside: the web version still uploads files to their servers. PDF24 is a strong option if you're not concerned about file privacy.
Good for: Users who want free unlimited access and don't need local processing.
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Sejda — Clean Interface, Tight Limits
Sejda is known for its clean interface and good PDF editing capabilities. The free tier is limited to 3 tasks per hour and a 50 MB file size. Files are uploaded and automatically deleted after 2 hours. Paid plans start at €7.50/month.
Good for: Occasional editing of smaller files.
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Adobe Acrobat Online — Premium Quality, Premium Price
Adobe invented the PDF format and their tools are the industry standard. The free online tools are very limited — most features require Adobe Acrobat Pro at €23.99/month. Files are uploaded to Adobe's servers (Adobe Document Cloud). For business users who need certified signatures or advanced editing, Adobe is worth the price. For everyday tasks it's overkill.
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Why PDFInOne is Different
Every tool above — including the free ones — processes your files on their servers. That means your PDF travels across the internet before you get it back. For most people this is fine. For confidential documents (contracts, medical records, financial data, ID scans) it is a real privacy risk.
PDFInOne takes a different approach: all processing happens in your browser using JavaScript. The PDF is read locally, modified locally, and saved locally. No file ever leaves your device. This is not a marketing claim — it is how the technology works.
When to choose PDFInOne
When another tool may be better
Summary
For everyday PDF tasks — merging, compressing, splitting, converting, protecting — PDFInOne offers the best combination of features, privacy, and price (free). It is the only tool in this comparison that processes files entirely in the browser without any server upload.
If you need a Smallpdf alternative without limits, a free ILovePDF replacement with no upload, or simply want to stop paying for basic PDF tools — PDFInOne is the answer.
Try PDFInOne — Free & Private
26 PDF tools. No upload. No registration. No limits. No cost.
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