PDF Flourish

Merge PDF Files Online Free

Join several PDFs into one file. Add your documents, drag them into the order you want, and download a single merged PDF.

  • Files never leave your device
  • No signup, no watermarks
  • Works offline once loaded

Drag and drop up to 20 PDFs, or choose them from your device.

Up to 50 MB per file. Files are processed in your browser.

How to merge PDF

  1. 1Add two or more PDF files.
  2. 2Drag the files into the order you want them to appear.
  3. 3Remove any file you added by mistake.
  4. 4Press Merge and download the combined PDF.

What you get

  • Reorder documents with drag and drop or the move buttons.
  • Keeps the original page quality — nothing is re-encoded.
  • Merge up to 20 files at a time.

Tips for better results

  • Name your files 01-cover, 02-report, 03-appendix before adding them — sorted names make the correct order obvious at a glance.
  • Merge scanned and digital pages in one document freely; pages are copied untouched, so each keeps its own quality.
  • If the merged file is large, run it through Compress PDF afterwards rather than compressing each part first.

Examples

Submitting an application as a single file

Add the form, then the ID scan, then the proof of address, in the order the checklist asks for. Drag to fix the order, merge, and you have one file that matches the requested sequence.

Combining monthly invoices for an accountant

Add all twelve invoice PDFs, sort them by filename, merge once, then add page numbers so the accountant can reference any invoice by page.

Frequently asked questions

How many files can I merge?
Up to 20 PDFs in one go, each up to 50 MB. You can merge the result again if you need more.
Does merging reduce quality?
No. Pages are copied across as-is, so text stays selectable and images keep their original resolution.
Are my files uploaded to a server?
No. This tool runs entirely in your browser using JavaScript. Your file never leaves your device, and nothing is stored by us.
Does it work on my phone?
Yes. The tools work in modern mobile browsers on Android and iPhone, as well as on Windows, macOS and Linux desktops.

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