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Merge PDF

Combine multiple PDF files into a single unified document with custom file ordering locally in your browser.

This tool runs in your browser.

PDF files stay in this browser and are not uploaded.

Choose a PDF to begin.

How to use

  1. 01Select or drop two or more PDF documents from your device.
  2. 02Arrange the file concatenation order using the up and down arrow controls.
  3. 03Click 'Merge PDF' to assemble and download your unified PDF file instantly.

FAQ

Is there a limit on how many PDF files I can merge?

Each PDF can be up to 100MB. The merging process runs locally in your browser memory, so you can combine dozens of files as long as your device has sufficient RAM.

Does merging PDFs preserve original fonts and vector styling?

Yes. The underlying engine extracts and merges PDF page trees losslessly, preserving fonts, embedded images, and layout formatting.

Is it safe to merge confidential business agreements and statements?

Completely safe. All operations execute strictly on your client machine with zero server communication. Your documents remain confidential.