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Merge PDF

Combine two or more PDF files into one document without uploading them. Drag to set the order, remove what you don't need, and download the merged PDF.

Runs in your browserFreeNo sign-up

Processed on your device. Files and text stay in your browser and are not uploaded to our servers. How privacy works

How to use the merge pdf

  1. Drop your PDFs onto the upload area or click Choose files. Each file shows its page count once it's read.
  2. Drag the rows or use the arrow buttons to set the order in which the documents are joined.
  3. Click Merge PDFs.
  4. Download merged.pdf. Files stay on your device the whole time.

Features

  • Merge up to 50 PDFs at once, up to 200 MB each
  • Drag-and-drop ordering with keyboard-accessible controls
  • Page counts shown before merging
  • Pages are copied as they are: text stays searchable, links and vector graphics are preserved
  • Password-protected files are detected and reported instead of silently failing

How the merge works

The tool opens each PDF in your browser with a JavaScript PDF library, copies its pages into a new document in the order you set, and saves the result. Because pages are copied rather than rasterised, text remains selectable and searchable, fonts and images keep their original quality, and file size stays close to the sum of the inputs.

Form fields, annotations and bookmarks are attached to pages, so most of them survive the merge; document-level features such as a table of contents or metadata come from the first file only, and encrypted files must be unlocked first.

Privacy

Contracts, medical records and bank statements are exactly the files people merge most, which is why this tool never uploads anything. You can confirm it in your browser's network inspector: no request contains your documents.

Frequently asked questions

Is there a file size limit?

Each PDF can be up to 200 MB and you can merge up to 50 at once. Since everything runs in your browser, the practical limit is your device's memory; very large scans may be slow on phones.

Why does it say a file is password-protected?

The PDF is encrypted, and pages can't be copied without the password. Open it in a PDF viewer, enter the password, save an unlocked copy and merge that.

Can I merge specific pages only?

Use Split PDF first to extract the pages you need from each file, then merge the results.

Does merging reduce quality or make the PDF larger?

Neither. Pages are copied without re-encoding, so quality is unchanged and the output is roughly the sum of the input sizes.

Are my PDFs uploaded?

No. The merge is performed entirely in your browser.

Other tools people use alongside Merge PDF.

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