Combinar PDF
Combinar varios PDF en uno
Three simple steps
How Combinar PDF works
Upload PDFs
Drop 2 or more files
Reorder
Drag thumbnails to set order
Download
One merged PDF
Built for you
Why use PDFLabz?
100% Private
Files never leave your browser.
Free, no signup
Unlimited use, no account.
No watermarks
Clean, untouched output.
Works everywhere
PC, Mac, phone, tablet — all browsers.
FAQ
Frequently asked questions
How many PDFs can I merge?
There's no fixed cap — we've tested 50+ files in one session. Performance depends on your device.
Will the output keep my page order?
Yes. Drag the thumbnails to reorder before pressing Process — that order is preserved exactly.
Is Combinar PDF really free?
Yes — every tool on PDFLabz is free with no daily limit, no account, and no watermark.
Are my files private?
100%. This tool runs entirely in your browser using JavaScript. Your files never reach our servers.
Is there a file size limit?
Up to 100 MB per file. Larger files just take longer because everything runs locally on your device.
Do I need to install anything?
No installation. Any modern browser (Chrome, Firefox, Safari, Edge) on any OS works.
Privacy first
This tool runs entirely in your browser. Your file never reaches our servers.