Local PDF tool - browser processing

Extract PDF pages without uploading

Use Extract Pages when you need one new PDF containing only selected pages from the source document.

Extract pages locally See the proof

0 bytes sent proof

What the widget measures

The panel counts what leaves your browser after you choose a file. The site's own scripts and fonts load like any web page — what you will never see is a request carrying your PDF. Check it here, or open your browser's Network tab and see for yourself.

0 bytes of your document sentStarts measuring when you choose a file on a tool page
Document request bodies
0 bytes
App network after file open
0 bytes
Processing engine
Browser WASM worker

The number is scoped to request bodies after you choose a document. App assets such as JavaScript, WASM, and fonts can still load; those are not your PDF bytes.

Verify it yourself
  1. Open DevTools, then the Network tab.
  2. Choose a PDF in the tool and complete the action.
  3. Filter for fetch or XHR requests; document processing should not create a request carrying your file.

Stronger check: load the tool page first, then disconnect from the network before choosing the file. Already-loaded tool code can continue processing locally, but a first visit still needs the site assets.

Steps

How to do it in Lemmafour

  1. Choose Extract pages locally.
  2. Open the source PDF.
  3. Select pages visually or enter a page range.
  4. Confirm the selected-page summary.
  5. Run Extract and download the new PDF.

Expert note

Extract versus split

Extract creates one new PDF from selected pages. Split creates multiple outputs according to cuts or ranges. For application packets, extraction is often cleaner because it produces one focused file. For distributing chapters or monthly statements, split is usually the better fit.

FAQ

Questions people ask before using this tool

Can I extract non-consecutive pages?

Yes. Use a range like 1, 4, 7-9 where supported by the page range control.

Does extracting change the original PDF?

No. It creates a new local output file.

Can I edit the extracted result?

Yes. Continue to the editor from the output actions when available.

Related private PDF workflows

Keep working locally

Split a PDF without uploading Split one PDF into several local output files in your browser without sending the document to a server. Delete PDF pages without uploading Remove unwanted PDF pages locally in your browser and export a new PDF. Organize PDF pages offline Reorder, rotate, duplicate, delete, and insert blank pages locally in your browser. Redact a bank statement PDF privately Remove account numbers, transactions, addresses, and balances from a bank statement PDF locally. PDF tool hub Browse the shipped local PDF tools.