Order before the daily collection and your letter is posted the same working day.

All free PDF tools

Free to use · Yours to download

Merge PDF files

Combine a letter and its supporting documents into one PDF. Arrange the pages in the order you need and download the combined file.

Your document desk

Free download · No account · Files stay in your browser

Up to 20 MB and 50 pages total. Unencrypted PDFs. Filled form fields become fixed text in the downloaded copy.

Make room for your document.

Choose a PDF above to see its pages here.
Your original file stays unchanged.

How to combine your PDFs

  1. 01Choose two or more PDF files, up to 20 MB and 50 pages in total.
  2. 02Move, rotate or remove individual pages using the page controls.
  3. 03Download one combined PDF, or carry it into PostOwl to print and post.

Before you download

Review every page, including its order and orientation. Keep your original file: the tool makes a new copy. Use unencrypted PDFs with up to 50 pages and 20 MB across all files.

PDF form fields are flattened into the output. Existing digital signatures may no longer validate after changes. Check documents with specialised features carefully.

Your files stay in the browser while you use these tools. If you choose postal delivery, your finished PDF is carried into the send page and uploaded as part of that flow.