TinyTools

📄 PDF

Merge PDF

Combine multiple PDF files into one, locally in your browser.

Your files are processed directly on your device and are not uploaded to our servers.

Drag and drop files here

or

How to use

  1. Drop two or more PDF files above, or click to browse.
  2. Reorder with drag-and-drop (or up/down buttons) and remove any file you do not need.
  3. Click Merge PDFs and wait for the combined file.
  4. Download the merged PDF, then optionally support TinyTools below.

FAQ

Are my PDFs uploaded to a server?
No. Merging runs entirely in your browser with pdf-lib. Your files never leave your device.
What order will pages appear in?
Files merge top-to-bottom in the list order shown. Drag files (or use the up/down buttons on mobile) to reorder before merging.
Why was my file rejected?
Only real PDF files are accepted. Password-protected PDFs cannot be merged — remove the password first. Corrupt files are skipped without losing your valid selection.
Is there a size limit?
Yes: 50 MB total per merge, with a warning above 25 MB per file. Large merges can be slow on phones — merge in smaller batches if needed.

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