Add Headers - Free Online Browser Tool

Insert running top headers on all pages.

Running headers are what make a long document navigable: a short title repeated at the top of every page, so a reader who picks up any single sheet knows what it belongs to. This tool adds one across the document with your own margin control.

This add headers utility runs completely inside your web browser. Your document is opened locally and processed on your own device using JavaScript and WebAssembly, so your file is never uploaded to any server. There is no signup, no watermark and no limit on how many documents you can handle.

  • 100% client-side - files never leave your device
  • Instant processing, no upload wait
  • Works on desktop, tablet and mobile
  • Free forever, no account required

Common next steps: Add Footers, Add Page Numbers, Court Pleading Line Numbers, Label Page Ranges.

How to Use the Add Headers Tool

Four steps, and the whole thing runs locally on your own device.

  1. Load the document

    Drop in the PDF that needs a running header.

  2. Type the header text

    Enter a document title, chapter name or reference — whatever identifies the document on a loose page.

  3. Set the position and spacing

    Adjust the distance from the top edge and the font size and alignment. Keep clear of any existing content.

  4. Apply to all pages

    The header is added to every page and the result downloads.

Frequently Asked Questions

Should the header be the same on every page?

That is what a running header is. For different text per page or per section, add the headers page by page instead.

How far from the top edge should it sit?

About 15–20 mm works on A4 and Letter, leaving a comfortable gap to the trim edge without crowding the content.

Can I left-align one thing and right-align something else on the same line?

Yes — combining a header with a page number in the opposite corner is the standard running-head layout, and both tools support it independently.

Will the header cover content already at the top of the page?

It will if the existing content sits high on the page. Check the margin setting against your document and move the header up if it clashes.

Is the header part of the page content?

Yes, real text drawn onto the page, so it prints and appears in every renderer.