PNG favors exact pixels; JPG favors compact photographic output
PDF to PNG writes each rendered page losslessly. It is a good choice when sharp text edges, diagrams, screenshots, or transparent-looking page artwork matter and file size is secondary.
PDF to JPG uses lossy compression. It is often useful for photographs and sharing images where a smaller file matters more than preserving every pixel. JPEG has no alpha channel, so transparent regions are flattened.
DPI controls page detail more than format selection does
The renderer samples the PDF page at the selected DPI. A 300 DPI page has more pixels than a 150 DPI page and can hold finer text or print detail, but it also takes more time and storage.
Raising DPI cannot recover detail absent from a low-resolution scan. Judge a scanned source at its intended display size before choosing a very large export.
Choose a page image when appearance matters more than editability
A JPG or PNG export preserves how the page looked when rendered, but the result is not an editable document. If you need editable paragraphs, use PDF to Word; if you need slides, use PDF to PowerPoint; if you need an SVG container, use PDF to SVG.
For a presentation where page appearance should remain stable, visual PPTX output or PNG/JPEG page images can be safer than an editable reconstruction that may shift objects.
- Choose PNG for diagrams, text-heavy pages, and lossless output.
- Choose JPG for photos and smaller shareable images.
- Start around 300 DPI for detailed inspection and lower it for screen use.
- Convert a specific page first when a document is long.