Merge PDF
Combine several PDFs into one, in your browser.
How to use
- 1 Click "Add PDF files" and choose two or more PDFs.
- 2 Use the ↑ and ↓ buttons to set the order.
- 3 Optionally type a name for the merged file.
- 4 Click Merge & download to save the combined PDF.
About Merge PDF
Merge PDF stitches several PDF files together into one tidy document, in the exact order you choose.
Add the files you want to combine, nudge them up or down until the sequence is right, optionally name the result, then download a single merged PDF.
It is the job you reach for constantly: assembling a cover letter, CV and references into one application; bundling separate invoice pages before sending them to accounts; or gluing the scanned chapters of a book back into a whole.
Because every page is copied faithfully, fonts, vector graphics and form fields survive the merge, and the page order you set in the list is exactly the order you get out.
There is no page limit beyond what your device can hold in memory, and you can drop in as many files as you like before combining.
Everything happens locally with pdf-lib inside your browser — the files are read, copied and re-saved on your own machine and never sent to a server, which matters for contracts, medical records and anything you would not email.
It also keeps working offline once the page has loaded, and your source files are left untouched: the merge produces a fresh download every time.
FAQ
Are my files uploaded anywhere?
No. Every PDF is read and combined with pdf-lib entirely in your browser, so nothing leaves your device.
How do I control the page order?
Files are merged top-to-bottom as shown in the list. Use the up and down buttons to reorder before merging.
Is there a limit on how many files I can merge?
No fixed limit — you are only bound by your device’s memory. Very large batches simply take a little longer.