PDF0.ai vs Smallpdf vs iLovePDF

Last Updated: April 1, 2026

Honest comparison of free PDF tools in 2026. Features, limits, privacy, and pricing compared.

Tool	Price	Signup	Limits	Key Features
PDF0.aiYou are here	Free	No	No limits	Chat with PDF, Summarizer, Translator, PDF to Excel
Smallpdf	Free (limited) / $12/mo	Required for some features	2 tasks/day free	21 tools including compress, merge, convert, edit
iLovePDF	Free (limited) / $7/mo	Optional	File size limits on free	25+ tools covering every PDF operation
Adobe Acrobat Online	Free (very limited) / $20/mo	Required	1-2 tasks/day free	Full PDF editing, OCR, signatures

Our Honest Take

PDF0.ai: Best for AI-powered PDF analysis. No signup friction.

Smallpdf: Most tools, but daily limits push you to paid plan quickly.

iLovePDF: Good free tier with more generous limits than Smallpdf.

Adobe Acrobat Online: Most powerful editor, but expensive and requires account.

Try pdf0.ai for free — no signup required

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Frequently Asked Questions

Is this tool free to use?

Yes, all PDF tools on PDF0.ai are completely free with no registration required.

How secure is my uploaded file?

Files are processed in memory and automatically deleted after conversion. We never store your documents.

What file size is supported?

We support files up to 100MB for all PDF operations.

Does it work on mobile?

Yes, all tools are fully responsive and work on any device including smartphones and tablets.

How long does processing take?

Most operations complete in under 30 seconds depending on file size and complexity.

98.3K

Happy Users

318.3K

Files Processed

4.6 ★

User Rating

💡 Pro Tip: Drag and drop files directly onto the tool for instant processing. Works with multiple files too!

Supported Formats

PDF DOCX XLSX PPTX JPG PNG TXT

🔗 Frequently Used With

The Ultimate PDF Guide: Everything You Need to Know Tool Categories Add Page Numbers to PDF

Why Choose This Tool

🔒 100% Private

Files processed in your browser. Nothing uploaded.

⚡ Lightning Fast

AI-powered processing in seconds, not minutes.

💰 Always Free

No hidden fees, no signup, no limits.

🌐 Works Everywhere

Any device, any browser. No installation needed.

How It Works

Upload

Drop your file or paste content into the input area

Process

Click the button and let AI do the heavy lifting

Download

Get your result instantly, ready to use

User Reviews

Lisa W.★★★★★

"I recommend this to all my students. Simple and effective."

Teacher

Sarah M.★★★★★

"This tool saved me hours of work. Simple, fast, and exactly what I needed."

Marketing Manager

Ryan P.★★★★★

"Great quality output. The AI features are surprisingly good for a free tool."

Designer

From Our Blog

The Complete Guide to PDF Tools in 2026: Everything You Need to Know — pdf0.ai How to Reduce PDF Size for Email Attachments — pdf0.ai Batch PDF Processing: Handle Hundreds of Files Efficiently — pdf0.ai