Skip to content
Lizely

PDF to JPG Converter

Render every PDF page as a separate JPG locally, with adjustable scale and quality.

Privacy: your files never leave your device. All processing happens locally in your browser.

How to use

  1. 1.Choose one non-empty PDF up to 25 MiB and review the page and pixel safety limits.
  2. 2.Select a rendering scale and JPEG quality, then click Convert to JPG.
  3. 3.Preview the generated pages and download each zero-padded JPG file separately.

About PDF to JPG Converter

PDF to JPG Converter turns every page of one PDF into a separate JPEG image inside your browser. Choose a document, select a rendering scale and JPEG quality, then start the conversion. Each finished page appears with its exact pixel dimensions and its own download button. The PDF and generated images stay on your device; Lizely does not upload the file or send its contents to a conversion server.

The converter renders the page rather than trying to extract only embedded pictures. That distinction matters. A PDF page can contain text, vector paths, photographs, annotations, transparency, and several coordinate systems. Rendering combines the visible page content into one image that matches the browser's PDF interpretation. It does not preserve editable text, vector objects, layers, links, forms, or accessibility structure. Use a text or link extractor when those document features are the actual target.

Scale controls output resolution. A higher scale produces more pixels and can make small text easier to read, but it also increases memory use, processing time, and download size. JPEG quality controls lossy image encoding from 0.60 to 1.00. Higher quality usually retains more detail but does not restore detail that was absent from the source PDF. The tool never promises a particular file size, DPI, or print quality because those outcomes depend on page dimensions and content.

Every page is flattened onto a white background before JPEG encoding because JPEG has no transparency channel. This prevents transparent regions from becoming unpredictable dark areas. The output MIME type is explicitly image/jpeg, and filenames include a zero-padded page number so downloads remain in document order when sorted. Changing the file, scale, or quality invalidates the old result, which prevents controls from describing images generated with earlier settings.

The browser enforces safety limits before and during work: one file up to 25 MiB, no more than 40 pages, no rendered page above 12,000 pixels on either side or 40 megapixels, and no conversion whose planned pages exceed 100 megapixels in total. These are processing limits, not statements about whether a PDF is safe or trustworthy. A damaged, encrypted, unsupported, or unusually complex PDF can still fail, and password protection is not bypassed.

Conversion begins only after you press the button. PDF.js and its worker are loaded on demand, so the rendering engine is not part of the page's initial interaction bundle. The shared worker URL can be cached and reused by the other PDF image tools. A new conversion cancels the previous job, and temporary object URLs and canvases are released when results are replaced or the component closes.

Use JPG when the destination expects a common photographic image format, when page transparency is unnecessary, or when smaller lossy files are acceptable. For lossless output and crisp diagrams, use PDF to PNG. To combine every page into a single vertical graphic, use PDF to Long Image. The original PDF is never changed, and every downloaded image is a newly rendered derivative.

Methodology & sources

Validate a bounded PDF, load PDF.js only after user action, preflight every scaled viewport against page and aggregate pixel limits, render each page onto an opaque white canvas, encode explicitly as image/jpeg at the selected quality, and release canvases, tasks, and object URLs on every replacement or cancellation path.

Frequently asked questions

Is my PDF uploaded?
No. PDF parsing, page rendering, JPEG encoding, previews, and downloads run locally in your browser.
Why does JPG use a white background?
JPEG has no transparency channel, so every PDF page is deliberately flattened onto white before encoding.
Does a higher scale improve the original PDF?
It creates more output pixels, but it cannot recover detail that the PDF does not contain and it uses more memory.
Can this extract the original images from a PDF?
No. It renders each complete visible page. Embedded-image extraction is a different operation.

Related tools

PDF Tools guides

View all