How to convert PDF to JPG without uploading the file

Updated: 2026-11-02 · AnyToolsKit

Most “free PDF to JPG” websites upload your document to their server, convert it there and send the images back. That is unnecessary in 2026: your browser can render PDF pages itself. Here is how to convert PDF to JPG with the file never leaving your device — on any computer or phone — and how to verify it.

Option 1: in your browser, without uploading

Our PDF to JPG converter uses PDF.js — the same open-source engine that displays PDFs in Firefox — running inside the page. The file is read from your disk into the tab’s memory, rendered to a canvas and encoded as JPG. No byte of the document is sent anywhere.

1. Open PDF to JPG and drop your PDF on the box (several files are fine).
2. Keep all pages selected or type a range such as 1-3,7.
3. Pick a resolution: 150 DPI for sharing and screens, 300 DPI for printing.
4. Click Convert, then download single images or Download all (ZIP).

How to check that nothing is uploaded

Do not take any website’s word for it — checking takes a minute:

• Airplane-mode test: load the converter, disconnect from the internet, then convert a file. If it still works, the conversion happens locally.
• Network tab: press F12 (or Cmd+Option+I), open the Network tab, clear it and convert a PDF. You should see no request that carries your file — only, at most, the converter’s own script files.
• File size check: an upload of a 20 MB PDF on a normal connection takes several seconds. A local conversion starts instantly.

Option 2: built-in or offline apps

macOS: Preview

Open the PDF in Preview, select a page thumbnail, choose File → Export…, set Format to JPEG, pick a resolution and save. Preview exports one page at a time, so for long documents a batch tool is faster. The Shortcuts app also has a Make Image from PDF Page action for automation.

Windows

Windows has no built-in “save PDF page as JPG” command. Offline options: open the PDF in GIMP or LibreOffice Draw and export, or use the free command-line tool pdftoppm (part of Poppler):

pdftoppm -jpeg -r 150 input.pdf page
# -> page-01.jpg, page-02.jpg, …

Linux

The same pdftoppm command is usually preinstalled (package poppler-utils). ImageMagick works too, but needs Ghostscript and can hit memory limits on big files.

iPhone and Android

Use the browser method above — it needs no app and no account. Avoid “scanner” apps that ask for broad photo or file permissions just to convert one PDF.

Why avoid upload-based converters?

• You cannot see how long a server keeps your file, who can access it, or whether it is used for other purposes.
• PDFs often contain more than you think: names, addresses, signatures, account numbers, hidden layers and metadata.
• Company policies and laws such as the GDPR may forbid sending customer documents to an unknown processor.

More on this in Is it safe to convert PDFs online?.