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Merge PDF

Combine multiple PDFs into a single file

Drop your files here

or click to browse

PDFUp to 20 files

Merge PDF — Free Online Tool

Combine multiple PDFs into a single file. This tool runs entirely in your browser — your files are never uploaded to any server. No sign-up required, no watermarks, no file size limits. Works on Windows, Mac, Linux, iPhone, and Android.

How to use Merge PDF

  1. Open this page in any modern browser (Chrome, Firefox, Safari, Edge)
  2. Drop your file(s) into the upload area or click to browse
  3. Adjust any settings if available
  4. Click the process button and download your result

Why choose Merge PDF?

  • ✓100% private — files are processed in your browser, never uploaded
  • ✓Completely free — no sign-up, no watermarks, no limits
  • ✓Instant processing — no server queues, no waiting
  • ✓Works everywhere — Windows, Mac, Linux, iOS, Android

Merge PDF — frequently asked questions

How many PDFs can I merge at once?+

There is no fixed limit. The practical ceiling is your device memory. Dozens of ordinary documents are routine; hundreds of large scans are better done in batches.

Does merging reduce PDF quality?+

No. A correct merge copies each page object into a new document without re-encoding images or text. Your pages remain identical to the originals.

Can I merge password-protected PDFs?+

You need to unlock them first. Password-protected PDFs cannot be read until the password is removed.

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