Are my documents uploaded?

No. The PDF is processed by JavaScript in your browser. Contracts, statements and other private documents never leave your device.

Is there a limit on how many files I can merge?

There's no fixed number. The practical limit is your device's memory: a few hundred megabytes in total works on most computers.

Will merging reduce quality?

No. Pages are copied without re-rendering or re-compressing. Bookmarks (outlines) and form fields aren't carried over, though.

Can I merge only some pages?

Extract the pages you need with the PDF Splitter first, then merge the results.

PDF Merger

Combine several PDFs into one document, in the order you choose.

Processed locally

Drop PDFs here

PDF files · up to 200.00 MB

Add two or more. You can reorder them next.

Choose files

Stays on your device

Instructions

How to use it

01Drop two or more PDF files onto the box.
02Drag the rows, or use the arrow buttons, to put them in order.
03Remove any you don't want, or add more.
04Press Merge and download the combined PDF.

About

What it does

Combining PDFs is one of the most common document chores: joining scanned pages, putting a cover letter in front of a CV, or sending several invoices as one attachment. Most online mergers upload your files to a server to do it.

This merger runs entirely in your browser using pdf-lib. Pages are copied exactly as they are, so text stays selectable, links keep working and nothing is re-compressed.

Supported formats

PDF: Any standard PDF up to 200 MB each. Password-protected PDFs need the password removed first.

Good for

Combining a cover letter and CV into one application
Joining scanned pages into a single document
Sending several invoices or receipts as one file
Assembling a report from separately exported chapters

Questions, answered

Are my documents uploaded?: No. The PDF is processed by JavaScript in your browser. Contracts, statements and other private documents never leave your device.
Is there a limit on how many files I can merge?: There's no fixed number. The practical limit is your device's memory: a few hundred megabytes in total works on most computers.
Will merging reduce quality?: No. Pages are copied without re-rendering or re-compressing. Bookmarks (outlines) and form fields aren't carried over, though.
Can I merge only some pages?: Extract the pages you need with the PDF Splitter first, then merge the results.

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