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Home / Edit Tools / Merge PDF

Merge PDF

Combine multiple PDF files into one document, in order. Drag to arrange the documents.

Select PDF files

or drag and drop multiple PDF files at once

Arrange the File Order

Press and drag the boxes below to set which file appears first.

Merging Documents...

Copying pages. Please wait...

Done! Your PDFs Have Been Merged

Source Files -
Total Size -
Download PDF Now
Guide

About the Merge PDF tool

The Merge PDF tool combines two or more PDF files into a single document. Use it when you have several separate files, such as thesis chapters, contract attachments, or split scan results, and you need one tidy file.

You can arrange the file order with drag & drop before merging. The order on screen matches the page order in the final file exactly.

How to use

  1. Click the upload area or drag PDF files into it. Select at least 2 files.
  2. Drag the file cards to arrange the order the way you want.
  3. Click the Merge button and wait for the process to finish.
  4. Download the merged file, saved as a new PDF.

Where are files processed?

All processing runs in your device's browser using JavaScript. Files are never uploaded to any server, so there are no queues and no upload wait times.

File size limits

This tool sets no file size limit. Large files use more memory and take longer to process, so devices with limited RAM may feel slow when handling files of several hundred MB.

Security & privacy

Your files never leave your device. Nothing is uploaded to a server, no copies are stored, and no third party can read your documents. Close the browser tab and no trace of your files remains on our side.

Merge PDF features

Frequently asked questions

Can I change the file order after uploading?
Yes. Drag the file cards to the position you want before pressing the merge button.
Does page quality change after merging?
No. This tool only joins pages as they are, without recompressing them.
What is the maximum number of files I can merge at once?
There is no limit on the number of files. As long as your browser can load them into memory, the process will run.
Can password-protected files be merged?
No. Remove the protection first, for example with the Protect PDF tool, then merge them.

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