What does this do?
Combines multiple PDF files into one. Add as many files as you like, drag to reorder, then download a single merged document. Useful for bundling invoices, stitching scanned chapters back together, or preparing a packet of supporting documents.
How do I reorder pages?
Drag any file in the list and drop it where you want it. The numbers on the left show the final order in the output.
Will this work with password-protected PDFs?
Only if they're not encrypted. The merger requests ignoreEncryption
for compatibility but cannot read the contents of a passworded PDF — you'd
need to unlock those first.
Are my PDFs uploaded?
No. Parsing, merging, and saving all happen in your browser using the
pdf-lib library. Verify in DevTools → Network.