Frequently Asked Questions
Everything you need to know about PDF Tools
Is pdf.ad-z.com really free? +
Yes, completely free forever. No signup required, no hidden fees, no watermarks on your output files.
Are my files private and safe? +
100% safe. All PDF processing runs in your browser using JavaScript. Your files never get uploaded to any server. They stay on your device at all times.
What tools are available? +
22+ tools: Merge PDF, Split PDF, Compress PDF, Rotate PDF, Remove Pages, Organize PDF, PDF to Word, PDF to Excel, PDF to PowerPoint, PDF to JPG, JPG to PDF, Word to PDF, Excel to PDF, PowerPoint to PDF, HTML to PDF, Edit PDF, Sign PDF, Protect PDF, Unlock PDF, Watermark PDF, Add Page Numbers, Repair PDF.
Is there a file size limit? +
No file size limits. Since everything runs in your browser, the only practical limit is your device's available RAM.
Does it work on iPhone and Android? +
Yes! All tools are fully responsive and work on mobile browsers on iOS and Android.
How does PDF to Word conversion work? +
Our hybrid approach: PDF pages are rendered as images (preserving exact design) with editable text boxes placed at exact text positions. Opens in Word, Google Docs, LibreOffice.
Why is it better to run in browser vs server? +
Browser-based tools are faster (no upload time), more private (files never leave your device), and work offline once loaded.
Can I use tools without internet? +
Once the page is loaded, many tools work offline. The libraries are cached by the service worker.