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Runs entirely in your browser

Overlay two PDFs

Lay one document over another — letterhead, a draft mark, a signature block. Neither file is uploaded.

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Edit & compose · quick answer

What Overlay PDF does

Use Overlay PDF to place the second PDF over or under the first, using the selected fit. Both files remain local and a separate combined copy is exported. Inspect the alignment and check that the overlay does not obscure important text before sharing.

How to overlay pdf in your browser

  1. Choose a base PDF and an overlay PDFSelect a base PDF and an overlay PDF from the dropzone. Filozy reads it locally and shows the relevant preview or controls before changing anything.
  2. Review the settingsChoose the base first and overlay second. Select Over or Under and the desired Fit option, then create the result.
  3. Create and check the resultRun the tool, review the reported page count, size, or notes, then save the newly created file while keeping the original.

Limits worth knowing

  • The result depends on the structure and quality of the source document, so visually inspect the exported file before relying on it.

Essential questions

Does Overlay PDF upload my file?

No. The selected file is opened and processed by code running in this browser tab. Document bytes and filenames are not sent to Filozy.

Will this change my original file?

No. Browsers cannot silently overwrite the file you selected. Filozy creates a separate result for you to save or pass to another local tool.

See a worked example, troubleshooting and the full FAQ →