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Online PDF Editing

Merge PDF Online

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

How to merge PDF files

  1. Drop your PDF files into the upload area, or click to browse for them.
  2. Drag the files in the list to set the order they should appear in.
  3. Remove any file you did not mean to include.
  4. Select Merge PDF, then download the combined document.

Want the longer version, with the settings that matter and the mistakes worth avoiding? How to Merge PDF Files Online.

Why use Merge PDF?

Signed contracts, scanned receipts and exported reports usually arrive as separate PDFs. Merging them produces one file to email, print or archive, with the pages in the order you decided rather than the order the files happened to be created in. Because the merge runs in your browser, contracts and financial documents never travel to a third-party server to be combined.

Privacy and browser processing

Your files are processed in your browser. Nothing is uploaded to a server, so your document never leaves your device.

There is no account to create and nothing to install. Because the work happens on your device, the speed depends on your device rather than on how busy a server is — and closing the tab is all it takes to remove every trace of the file from this page.

Limitations

Worth knowing before you start:

  • You need at least two PDF files before a merge can run.
  • Password-protected PDFs must be unlocked before they can be merged.
  • Very large files are limited by the memory your browser can allocate.
  • Bookmarks, attachments and form fields from the source files may not carry over into the merged document.

Frequently asked questions

Is it free to merge PDF files?
Yes. Merging is free, with no account, no sign-up and no watermark on the result. There is no daily limit on how many files you can combine.
Are my PDF files uploaded to a server?
No. The merge runs entirely in your browser using your own device's memory. Your files are never transmitted to us, which is why the tool keeps working even if you go offline after the page has loaded.
Can I choose the order of the merged pages?
Yes. After selecting your files, drag them into the order you want. The merged PDF follows the order shown in the file list, top to bottom.
Can I merge PDFs with different page sizes?
Yes. Each page keeps its original dimensions and orientation, so an A4 report and a US Letter invoice can sit in the same document without being stretched or cropped.
Does merging work on a phone or tablet?
Yes. The tool is built for touch screens as well as desktops. Very large documents may be slower on a phone, because the merge is limited by the memory your mobile browser makes available.
Will the merged PDF have a watermark?
No. The downloaded file contains only your original pages. Nothing is stamped, branded or added to the output.