QiLing Tools

🧩Merge PDF - Combine Multiple PDF Files Online for Free

Combine multiple PDF files into a single PDF in the order you specify. Great for scanned documents, contract attachments and multi-chapter reports. Merging happens entirely inside your browser; nothing is uploaded.

Free · No sign-up · Runs in your browserLast updated:

Need a full PDF editor?

Try Qiling PDF Editor: edit the original text, add text, images and annotations, find & replace and manage pages — all in one place. Also free, and your files never leave your browser.

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How to use Merge PDF

  1. 1Click or drag to add two or more PDF files
  2. 2Use the up and down buttons to arrange the order
  3. 3Click "Merge" and download the combined PDF

FAQ

Does merging compress or alter the content?
No. Pages are copied into the new file as they are; content, page size and quality stay unchanged.
Is there a size or file count limit?
There is no hard limit; it depends on your computer memory. PDFs up to a few hundred MB merge smoothly.
Are my files uploaded to a server?
No. Everything runs locally in your browser via WebAssembly. Files never leave your computer and are discarded when you close the page.
Do I need to sign up or pay?
No. The site is completely free, requires no account, has no usage limits and adds no watermarks.

Features

  • Merge any number of PDFs
  • Freely reorder files
  • Keeps original page sizes and content
  • Local processing, done in seconds