Local PDF tool - browser processing

Convert PDF to images without uploading

Export all pages or selected ranges as local PNG or JPEG files from the browser.

Export images 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 Export images locally.
  2. Open the PDF.
  3. Select all pages or a custom range.
  4. Choose PNG or JPEG and the quality preset.
  5. Run the conversion and download the ZIP or image output.

Expert note

Raster export changes the document

PDF-to-image export rasterizes pages. That is useful for previews, thumbnails, and systems that require images, but it removes selectable text and form fields from the output images. For official documents, keep the original PDF and use image export only when the recipient specifically needs images.

FAQ

Questions people ask before using this tool

Should I choose PNG or JPEG?

PNG is usually better for sharp text and diagrams. JPEG is usually smaller for scans and photos.

Can I export only some pages?

Yes. Use the custom range option.

Does this preserve form fields?

No. Images are raster outputs, not interactive PDFs.

Related private PDF workflows

Keep working locally

Convert images to PDF without uploading Create a PDF from local JPG, PNG, or WebP images in your browser. Extract PDF pages without uploading Pick pages or ranges from a PDF and save them as a new local PDF in your browser. Compress a PDF locally Reduce PDF file size right in your browser — the file never goes to a server to be compressed. Crop a PDF without uploading Trim PDF margins locally in your browser and export a cropped copy. PDF tool hub Browse the shipped local PDF tools.