Insert Blank Pages - Free Online Browser Tool

Add clean blank white pages at designated positions or after every page.

Double-sided printing forces you to think in pairs: a single-sided sheet needs a blank on its back or the printer bleeds through. This tool inserts clean white pages at the positions you choose — or after every page — so duplex output stays readable.

This insert blank pages 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 Binding Margins (Gutter), Duplicate Pages, Reorder Pages, Remove Blank Pages.

How to Use the Insert Blank Pages Tool

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

  1. Load your PDF

    Drop in the document that needs padding. The page list appears for positioning.

  2. Choose where the blanks go

    Insert after a specific page number, or choose the after-every-page option to pad the whole document automatically.

  3. Set the blank size

    Blank pages match the size of the page they follow, which is what you want for duplex printing.

  4. Insert and download

    Press Insert Blank Pages. Genuine empty pages are added — they are not white rectangles drawn over existing content.

Frequently Asked Questions

Will text from the previous page show through when printed duplex?

Yes, that is exactly why this tool exists. A real empty page on the reverse stops toner transferring from the front.

Are the inserted pages truly empty or just covered in white?

Truly empty. Each blank page gets its own content stream and is a real page you can later write on — not an opaque rectangle laid over a scan.

Where can I insert a blank?

After any page number in the document, or after every page in one action. Inserting at position zero effectively puts a blank at the front.

What size are the inserted pages?

They match the size of the page they follow, so mixed-size documents stay consistent.

Can I write on the inserted pages afterwards?

Yes. Save the padded file and reopen it with Add Text Overlay to put handwriting-style content on the blanks.