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NiftyFix

Merge PDF files into one

Combine several PDFs into a single file in the order you choose. Files are merged on your device and never uploaded.

Runs on your device — your file is not uploaded

Accepts
PDF
Produces
PDF
Maximum file size
250 MB on computers · 100 MB on phones

Application portals, offices and email often want one PDF, not five. Add your PDFs, put them in order, and this tool joins every page into a single file. Pages are copied exactly as they are — text stays selectable, and nothing is re-compressed or re-printed — and the merged file is opened again to confirm its page count before you download it.

How to use it

  1. Choose two or more PDF files, or drop them onto the box. You can add more later.
  2. Put the files in order with the up and down arrows. Pages follow the file order.
  3. Optionally type a name for the merged file.
  4. Select "Merge PDFs", check the report, then download.

Options explained

File order

The merged PDF contains all pages of the first file, then all pages of the second, and so on. Use the arrows to change the order, or ✕ to remove a file.

File name

Leave it empty to name the result after your first file, with "-merged" added.

Example

Limits and troubleshooting

Questions

Are my files uploaded?

No. Merging happens in your browser, in an isolated frame that cannot connect to other sites. You can verify this on the privacy verification page.

Will the quality change?

No. Pages are copied as they are, without re-compressing images or turning text into pictures.

Can I merge a PDF with a photo?

Convert the photo with JPG to PDF first, then merge the two PDFs here.

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