Merge PDF files free

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About this tool

Merge PDF files free without uploading

Select PDF files in the order you want them to appear. NowConverter copies their pages into one new downloadable document while keeping the original files unchanged.

Before you start

This version does not open password-protected PDFs. Very large or complex PDFs may exceed the browser’s available memory.

Are files uploaded to a server?

No. The input file bytes are processed inside your browser. Some tools download their JavaScript libraries from public CDNs, but the files themselves are not uploaded.

Do I need an account or a paid plan?

No. The current version is free, has no registration and runs on devices with a compatible modern browser.

Can I choose the order of the PDF files?

Yes. Select the PDFs in the order you want their pages combined. NowConverter produces a new PDF and leaves your original files unchanged.

Merge only the pages you actually want to distribute

Merging is convenient for invoices, application attachments, scanned chapters or project documents that need to travel as one file. The final order matters because recipients often read a merged PDF from beginning to end and automated systems may treat it as a single document.

Before merging, remove duplicate pages and check whether any source file contains private appendices, comments or pages that should not be included. Browser-based merging creates a new PDF from the selected inputs, so keep the source documents until you have opened the result and confirmed its page order.

Practical checks

Arrange source PDFs in the intended reading order before export.
Check the merged page count against the originals.
Retain source files when signatures, forms or archival fidelity matter.

Practical walkthrough · pdf merge

Combine a multi-part application

Example task: A submission portal asks for one PDF, but you have a two-page form, a one-page letter and a three-page attachment.

Try this workflow

Check the three originals and decide whether the intended order is form → letter → attachment.
Add the PDFs in that order, merge them, then open the downloaded PDF.
Count the result: 2 + 1 + 3 = 6 pages, and inspect the transition between documents.

What to expect

The merged file should have six pages in the order you selected. The original documents remain separate and unchanged.

When to take extra care

Merging does not make a scanned page searchable, remove private content or preserve every interactive form behavior. For signed PDFs, verify whether combining invalidated a digital signature.