PDF Tools100% private

Merge PDF Files

Combine multiple PDF files into a single document, entirely in your browser.

Drop PDFs here or click to browse

Select multiple files to merge, or Ctrl+V to paste

or Ctrl+V to paste

How it works

1
Upload your PDFsClick, drag, or paste multiple PDF files into the drop zone.
2
Arrange the orderDrag files up or down to set the merge order. Remove any files you don't want included.
3
Merge and downloadClick Merge to combine all PDFs into one file.

Is there a file size limit?

There's no hard limit - the tool runs entirely in your browser's memory. For very large files (100MB+), merging may take a few seconds.

Does merging affect quality?

No. pdf-lib copies pages without re-encoding, so the merged PDF is identical in quality to the originals.

Can I reorder pages after merging?

Yes - use the Reorder & Delete tool to rearrange pages in the merged PDF after download.

Extract specific pages or split a PDF into multiple separate documents.

Drag to reorder, select to delete - edit PDF page order without any software.

Rotate all or specific pages in a PDF by 90°, 180°, or 270°.